Briefly explain how sexual reproduction generates new allele combinations in offspring.

Answers

Answer 1
First, crossing-over and the subsequent rearrangement of alleles on homologous chromosomes leads to gametes with a new mix of genetic material. Second, when the gametes fuse, new combinations of alleles result.

Related Questions

ayudaa por fa es para mañana
teniendo en cuenta la lectura uno de los métodos más rápidos económicos y eficaces para eliminar las bacterias del agua es la
A. desinfección
B. esterilización
C. cloración
D. inmunización

Answers

La respirate Es C. Cloración

A living microorganism or its toxin may cause human disease that is transported through the US MAIL MUST be marked as a:________.A. MordantB. VirusC. InfestationD. Etiologic agent

Answers

Answer d. Etiologic agent

What are Carotenoids?
A. Pigments that reflect purple light.
B. Pigments that reflect green light.
C. Pigments that reflect orange light.
D. Pigments that reflect blue light.

Answers

C. Pigments that reflect orange lights
C. Pigments that reflect orange light


The coastal ocean zone and estuaries are alike in that both are important as breeding and nesting areas for birds. True or fualse?

Answers

Answer:

I think True

Explanation:

You can refer to it for more information:

The coastal ocean zone and estuaries are alike in that both are important as breeding and nesting areas for birds. The depth of the water in an aquatic ecosystem determines the amount of sunlight that living things receive there. ... The water in freshwater wetlands is always brackish

do you think sewer lice is alive? why or why not?

Answers

Answer:

I don't now because i dont read or hear about it

Which of the following is composed of a population of a species plus populations of other species? A. Community B. Biotic Potential C. Abiotic community D. Ecosystem

Answers

A Community is composed of a population of a species plus populations of other species. Thus, the correct option is A.

What is Population?

A Population may be defined as a group of individuals belonging to the same species living in the same area at a given time. Some demographic characteristics of a population are size, density, birth rate, death rate, population dispersal, etc.

A community may be defined as a group of individuals belonging to different species living in the same area at a given time.

An ecosystem may be defined as a place or area where individuals of different species along with abiotic factors live together and interact with one another for the purpose of food, shelter, and space.

The Abiotic community deals with the existence of abiotic factors like temperature, rainfall, fire, winds, mountains, hills, etc.

Therefore, a Community is composed of a population of a species plus populations of other species. Thus, the correct option is A.

To learn more about Community, refer to the link:

https://brainly.com/question/15971107

#SPJ5

According to the theory of plate tectonics,which is one feature that plates carry?

Answers

Answer:

According to the theory of plate tectonics, seafloor features do plates carry.

Explanation:

There are many rough spots which can no longer hold, the sudden release of the built-up motion releases, and the sudden movement under the sea floor causes a submarine earthquake in the area.

Answer:

seafloor

Explanation :).

What climate zone includes much of North America, Europe, and Asia?

A. Temperate zone
B. Polar zone
C. Pacific zone
D.Tropical zone

Answers

Polar zone includes much of North America Europe and Asia

PLSS HELPP!!- 1 Provide the height of each plant at Week 2, Week 5, and Week 7 2 At what points in time did each plant stay the same height? 3 Which plant grew the fastest? Which plant grew the slowest? Hint: Consider the slope of each line.​

Answers

Answer:

hii there

Explanation:

( 1 )

Week 2 = plant A = 50 CM.

plant B = 30 CM.

plant C = 20 CM.

Week 3 = plant A = 70 CM.

plant B = 40 CM.

plant C = 30 CM.

Week 5 = plant A = 80 CM.

plant B = 60 CM.

plant C = 30 CM.

Week 7 = plant A = 90 CM.

plant B = 75 CM.

plant C = 40 CM.

( 2 )

there are no points in which each plant stay at the same height

( 3 )

( 1 ) Plant A grew the fastest.

( 2) plant C grew the slowest

Hope it helps you

have a good day dear :)

Answer:

Week 2 = plant A = 50 CM.

plant B = 30 CM.

plant C = 20 CM.

Week 3 = plant A = 70 CM.

plant B = 40 CM.

plant C = 30 CM.

Week 5 = plant A = 80 CM.

plant B = 60 CM.

plant C = 30 CM.

Week 7 = plant A = 90 CM.

plant B = 75 CM.

plant C = 40 CM.

( 2 )

there are no points in which each plant stay at the same height

( 3 )

( 1 ) Plant A grew the fastest.

( 2) plant C grew the slowest

Hope it helps you

have a good day dear :)

Explanation:

Which is represented by the image?

Answers

Answer:

represent by image.

Explanation:

To store an image on a computer, the image is broken down into tiny elements called pixels. A pixel (short for picture element) represents one colour. ... In order for the computer to store the image, each pixel is represented by a binary value. We call this representation of colours a “bit-plane”.

TLRs are Group of answer choices the coatings of pathogens by complement. present in intact skin, sebum, tears, etc. phagocyte receptors that detect PAMPs. nonspecific leukocytes that secrete toxins onto the surface of virally infected cells. molecules that damage cells, resulting in cell lysis.

Answers

Answer: Phagocyte receptors that detect PAMPs

Explanation:

TLRs or Toll-like receptors, are a family of proteins that are part of the innate immune system. TLRs are transmembranous and recognize pathogen-associated molecular patterns (PAMPs), which are groups of chemical characteristics common to certain types of pathogens. Patterns detected by TLRs include lipopolysaccharide, a compound found on the surfaces of Gram-negative bacteria, and double-stranded RNA, which is an integral part of the life cycles of many viruses. These PAMPs are generally important for the survival of the pathogen, so they are well preserved. Activation of these receptors induces inflammatory responses in leukocytes of myeloid lineage, signaling via NF-κB, which is a transcription factor that activates pro-inflammatory genes. Activated TLRs also increase the production of co-stimulatory molecules such as CD80, CD86 and CD40. These proteins, expressed on the surface of antigen-presenting cells, are necessary for the activation of T-lymphocytes by dentritic cells and macrophages already showing antigens in their MHC type II molecules (Major Histocompatibility Complex, they participate in the presentation of antigens to T lymphocytes)

In addition, TLR-mediated signaling on antigen-presenting cells (APCs) plays an important role in linking the innate and adaptive immune responses.

(Scientific method please answer) A _________ is an educated guess about the answer to a question.

Answers

Answer:

A hypothesis is a possible explanation for a set of observations or an answer to a scientific question. A hypothesis could also be called an "educated guess". Another way of thinking about it, is that a hypothesis is a possible answer to the question you've asked.

hoped i helped

i need this answered asap!! What's the source of thermal energy and how energy flows throughout the layers of the earth. (Hint: think of the cause of the convection currents)

Answers

I hope this pic will help you a lot.....

HAVE A GREAT DAY .....

Which of the following will cause a decrease in the mass of an object? A. Increase in the gravitational pull B. Decrease in the gravitational pull C. Increase in the quantity of substance present in the object D. Decrease in the quantity of substance present in the object

Answers

Answer:

C

Explanation:

Which of the following is an organic molecule?

Answers

Answer:

glucose, water is found organisms but mixed with other substances

what has a greater influence on protien levels

Answers

Question is incomplete, The complete question is as follows:

What has a greater influence on protein levels?

A. Protein degradation has a greater influence because they are denatured faster than the cell can produce them

B. mRNA destroyer concentration has a greater influence because it is destroying mRNA before proteins can even be produced

C. mRNA destroyer concentration has a greater influence because mRNA is destroyed right after the proteins are produced

D. Protein degradation has a greater influence because outside factors like antibiotics can cause it, and it is difficult to recover from

Answer:

B. mRNA destroyer concentration has a greater influence because it is destroying mRNA before proteins can even be produced  

Explanation:

mRNA destroyer concentration has a greater influence on protein levels because mRNA destroyers abort the mRNA as soon as the enough mRNA are produced before formation of proteins.

mRNA destroyer follow the mRNA around itself and dragged it once mRNA is picked for protein synthesis.

Hence, the correct answer is "B".

What is another name for data?
A) square root
B) addition
C) subtraction
D) information

Answers

Answer:

the correct answer is option ( D )

Hope it helps you

Mark my answer as brainlist

have a nice day

Answer:

the answer is information

Elodea is a plant that lives in water. Like all plants, elodea can make its own food through
process called photosynthesis. Oxygen gas is also produced during photosynthesis.
Photosynthesis can only happen in the presence of light. To measure the rate of
photosynthesis, a piece of elodea can be placed in an inverted test tube filled with a
sodium bicarbonate solution. Oxygen gas produced by photosynthesis will collect at the
top of the test tube.
A student has designed an experiment using elodea plants. The experimental setup is
shown in Figure 1-4
Which of the setups would serve as the control of the experiment?
Bucket
Lamp
Flashlight High
Natural
Elodea
Sodium
bicarbonate
solution

Answers

The controlled variable is kept constant during the whole experiment in all the different study groups. In this experiment, Sodium  bicarbonate  solution is the controlled variable.

------------------------

During an experiment, the controlled variables are kept constant in the control groups and the experimental groups. Unlike the independent variable, the controlled variables do not influence the results. These variables do not affect the response of the dependent variable.  

In this experiment,

The independent variable → presence/absence of light reaching the plant. The researcher regulates the amount of light by using different elements such as the bucket, lamp, flashlight, and natural light. The dependent variable → oxygen production through which the researcher measures the photosynthesis rate. The controlled variableSodium  bicarbonate  solution. It provides carbon dioxyde, and must be constant in the four scenarios to avoid an effect on the results.      

-----------------------

Related link: https://brainly.com/question/20511901?referrer=searchResults

Which of the following best depicts the use of Geographic Information Systems?

City planners using layered maps to decide where to build a park
Wireless routers providing internet signal


Government workers constructing a new interstate highway system


Retail stores advertising a new product

Answers

Answer:

City planners using layered maps to decide where to build a park

Explanation:

They are using the GIS data layering method...different aspects ir layers of an area are taken into consideration

For example they would look at schools close by, rivers and soil type. By combining those three characteristics they could make a choice of the best possible area a park should be built.

How fast does E. coli manifest symptoms A. 3 mins B. 3 hours C. 3 days D. 3 weeks

Answers

Answer:

C. 3 days

Explanation:

Answer:

c

Explanation:

2-5 days after exposure is when symptoms show

taken from the minnesota department of health

What do you think that David would have predicted
based on his hypothesis? (Set it up as an IF
THEN statement)

Answers

Answer:

Hey there!

I believe that David's prediction would be: If the amount of pollutants in the atmosphere reached an amount unhealthy for the salamanders, then the salamander population would decrease.

Let me know if this helps :)

Now complete the table. Fill in the name of each food and the amount of each vitamin it contains. Be sure to include the proper units (example: 25 grams). Note that microgram = μg.



Answers

Answer:

The three foods with their appropriate food serving and the right amount of nutrients are given below:

1. Egg                     - 100 gm serving

vitamin C                    0 mg

vitamin B12                1.1 microgram

vitamin E                    520 IU

sodium                       124 milligram

calcium                       50 mg

potassium                  126 mg

iron                              4.3 mg

2. Fish                    - 85 gm serving

vitamin C                    3.1 mg

vitamin B12                2.4 microgram

vitamin E                    42.5 IU

sodium                       51.9 milligram

calcium                       12.8 mg

potassium                  326.4 mg

iron                              0.3 mg

3. Broccoli                    - 91 gm serving

vitamin C                    81 mg

vitamin B12               0 microgram

vitamin E                    1.2 mg

sodium                       30 milligram

calcium                       44 mg

potassium                  287.6 mg

iron                              0.7 mg

Answer:

Food 1: Cheese Pizza    Food 2: Cola                          Food 3: Navel Orange

Serving Size: 2 Slices Serving Size: 21 Ounces       Serving Size: 1 Medium

Vitamin C 0                        0                                     50.6 mg

Vitamin B12 1.28 µg                0                                           0

Vitamin E 2.12 mg                0                                           0

Sodium       1,248 mg             19 mg                                           0

Calcium       416 mg             10 mg                                      39 mg

Potassium 336 mg             10 mg                                     162 mg

Iron           3.72 mg                    0.53 mg                                0 mg

Two groups of tomatoes were grown in the laboratory, one with humus added to the soil and the other a control without humus. The leaves of the plants grown without humus were yellowish (less green) compared with those of the plants grown in humus-enriched soil. The best explanation for this difference is that __________.

Answers

Answer:

The best explanation for this difference is that the humus contained micronutrients needed by the plants for the synthesis of chlorophyll, such as Manganese (Mn), Iron (Fe) and Copper (Cu).

Explanation:

Chlorosis is the yellowing of plant leaves, and this is due to the deficiency in the amount of chlorophyll contained in the plant leaves. Iron (Fe) is an essential micronutrient for the synthesis of chlorophyll, which is an enzyme-catalyzed reaction. Copper (Cu) is a component of most enzymes, while Manganese (Mn) is a cofactor, required for the activation of the enzymes that catalyze chlorophyll synthesis, hence deficiency of these nutrients will result in the development of chlorosis.

Food moved to the back of the mouth by the tongue causes all of the following EXCEPT covering the opening of the larynx by the epiglottis. pressure against the pharynx to initiate swallowing. elevation of the soft palate to seal off the nasal cavity. the swallowing center stimulates successive waves of muscle contraction in the esophagus. churning of the stomach contents.

Answers

Answer:

churning of the stomach contents.

Explanation:

When food is moved to the back of the mouth by the tongue (deglutition), it does not cause the churning of the stomach contents.

The churning of stomach contents occurs when the bolus from the mouth has entered through the lower esophageal sphincter into the stomach. Churning is the mixing of the bolus with digestive juices containing acids and enzymes secreted from the stomach lining.

Which of the following is NOT a function of receptors?

Answers

Answer:

Receptors they receive signal an initiate a response that send a specific signal onward.

Explanation:

Receptors is performed may be affected environmental factors, like light, temperature, pressure, or other receptors.

Receptors can to be change the conformation and posture response to chemical reactions by called signaling.

Most receptors the cellular parts located the part of reporter outside of the cell.

Receptor and often alter the receptor conformation, and are found membrane, and receptor are located only inside the cell.

Receptor  cellular control the functions such gene transcription.

Receptor can induce growth, and death, control channels or the regulate cell, and the cell receptors depends on the type of receptors expressed.

Answer: *Olfactory receptor, taste receptor, thermoreceptors are the receptors used for the senses of smell, taste and perceive temperature stimuli. *Photoreceptors are the receptors used to detect light. They are found in rods and cones of the retina in the eye. *Pain receptors sense the pain in parts of the body.Mar 18, 2015

Explanation:

what type of energy transfer happens when something freezes

Answers

Alternate interior angles is the chemical answer

• Categorise the materials of the following productes into 'can be recycled' and 'Cannot be recycled:

Telephone instrumentes, plastic toys Cooker handles, carry bages, ball point penos, plastic bowles plastic covering on electrical wired plastic chairs, electrical switches.

Plz give me soon answer plzzz

Answers

Answer:

Telephone instrumentes, plastic toys Cooker handles, carry bages, ball point penos, plastic bowles plastic covering on electrical wired plastic chairs, electrical switches.

Which one of the following most accurately describes how the spindle poles are separated during anaphase B? Dyneins pushing spindle poles further apart from each other Myosin on actin tracks pulling the spindle poles into position Kinesins pushing spindle poles farther apart from each other Microtubules directly pushing and pulling on the spindle poles Kinesins pulling microtubules and spindle poles towards the periphery of the cell

Answers

Answer: im also stuck on this helpp

Explanation:

Answer:

B

Explanation:

B: Kinesins pushing spindle poles farther apart from each other

Answer me!!!!
Read the descriptions of two experiments below.
Experiment 1: A group of students did a test to see if the
acidity of water affects the growth of pea plants. They
followed a logical method and performed their experiment
once, using a control group and experimental groups. The
results supported their hypothesis.
Experiment 2: A group of students did a test to see if the
acidity of water affects the growth of bacteria in the water,
They used a control group and experimental groups. They
repeated their experiment several times and received the
same results each time.
Which experiment is more likely to be reliable, and why?
O A. Experiment 2, because it gave the same results every time
O B. Experiment 1, because its results supported the hypothesis
O C. Experiment 1, because it followed a logical method
O D. Experiment 2, because its setup included a control group

Answers

Answer:

A

Explanation:

Because it is giving you the same results ( i just did the test and got it right)

Answer:

a.

Explanation:

just took the test

Which component of physical fitness is skill related? A.Flexibility B.cardiorespiratory C.muscular strength D.agility

Answers

Answer:

D.agility

Explanation:

D.agility

Answer:

D Agility

Explanation:

physical fitness components related to skills, including: explosive power, speed, agility, coordination, speed, reaction and balance.

Other Questions
5. I was just about to leave when I (remember)_________ ___________my briefcase . 6. She (walk)____________________ into the station only to find that the train (leave) _______________7. At the conference, scientists reported that they (find)_______________ a cure for Malaria .8. On my last visit to Wixton I (find) __________that the village (not change)__________________ much . 9. In a surprise move, the Prime Minister (resign)_______ last night . / 10. Jane didnt want any dinner. She (eat)_____ already. 11. When she (come)________________ into the hall, everyone (start) cheering ___________________. 12. After they (eat)_______________ all the food, they (pick) ________________up their bags left . 13. I thought I would get to the restaurant first, but Jim (arrive)___________________________ before me . 14. By the time I (get)______________ to the party, most people (go)_______________________ home. 15. As soon as I (turn) __________________the ignition key , the engine (catch)_________________ fire 15. Nowadays we(know) ___________how important television (be)______for our knowledge about the world What social change did the American Revolution bring about regarding gender roles? If a^b= b^a and a = 2b then find the value of a^2+b^2a) 20b) 30c) 28d) 24 Company A bought Company B in 2015 and appropriately recorded $750,000 of goodwill related to the purchase. On December 31, 2019, the fair value of Company B is $5,200,000 and it is carried on Company As books at a total book value of $5,800,000, including the goodwill. An analysis of Company Bs assets indicates that the fair value of the net assets of the division total $5,100,000 on December 31, 2019. What goodwill impairment should be recognized by Company A in 2019? There are 2229 students in a school district. Among a sample of 452 students from this school district, 163 have mathematics scores below grade level. Based on this sample, estimate the number of students in this school district with mathematics scores below grade level. a. 804 b. 844 c. 884 d. 0.36 Compare the value for the inductor when the current was increasing vs decreasing. Which statement matches the expected results. The inductance should be the same regardless of whether the current is increasing or decreasing. The inductance should be greater while the current is increasing. The inductance should be greater while the current is decreasing. A change of heart How has Craigs family influenced him? In most organisms, the end product of glycolysis is pyruvate. Pyruvate still contains a substantial amount of energy, which can be further extracted. Whether the organisms are operating under aerobic or anaerobic conditions determines the metabolic pathway that pyruvate undergoes to produce more ATP. In this tutorial, you will identify the end products of these metabolic pathways. Which of the following are the best ways to speakwith or write to a supervisor? Check all of theboxes that applybe more formal than you would be with othercoworkersadjust your writing style to the audience andavoid the use of technical terms orabbreviationsbe clear, focused, and brief An online polling site posed this question: "How much stock do you put in long-range weather forecasts?" Among its Web site users, 38, 528 chose to respond Complete parts (a) through (c) below. a. Among the responses received, 3% answered with "a lot". What is the actual number of responses consisting of "a lot"? b. Among the responses received, 18, 566 consisted of "very little or none". What percentage of responses consisted of "very little or none"? c. Because the sample size of 38, 528 is so large, can we conclude that about 3% of the general population puts "a lot" of stock in long-range weather forecasts? Why or why not? A. No, because the sample is a voluntary response sample, so the sample is not likely to be representative of the population. B. Yes, because the sample is so large, the margin of error is negligible. C. No, because even though the sample size is so large, there is still a margin of error. D. Yes, because the sample size is large enough so that the sample is representative of the population. 1.5(a -4) - 2 = 4 pls help ASAP and show checked answer Many landless and jobless peasants survive in Mexico by _____. The graph below represents the function f.f(x)if g is a quadratic function with a positive leading coefficient and a vertex at (0,3), which statement is true?.The function fintersects the x-axis at two points, and the function g never intersects the x-axis.BThe function fintersects the x-axis at two points, and the function g intersects the x-axis at only one point.c.Both of the functions fand g intersect the x-axis at only one point.DBoth of the functions fand g intersect the x-axis at exactly two points. i need to know what the answer is!? Can someone help me with this, its about writing a scenario which of the following would not transmit signals from one point to another? a. telephone line. b. modem. c. fibre optics. d. coaxial cable I need help with this The circumference of a circle is 20. What is the area of the circle? Read this excerpt from an essay on Sister Carrie.Very early in the novel, Dreiser plays with the object/person dynamic Clothes, for example, stand in for people. Describing traveling salesmenknown as "drummers," Dreiser writes, "Good clothes, of course, were the first essential, the things without which he was nothing."What is missing from this paragraph?.a clear claimOB.textual evidenceOC. explanation of how textual evidence supports a claimD.nothingResetNextmen ved Air at 1 atm, 15C, and 60 percent relative humidity is first heated to 20 C in a heating section and then humidified by introducing water vapor. The air leaves the humidifying section at 25C and 65 percent relative humidity. Determine:a. the amount of steam added to the air. b. the amount of heal transfer to the air in the heating section.