Answer:
roots
Explanation:
please mark as brainliest :)
Consider the following chromosomes and if they are affected by hemophilia.
X = unaffected X chromosome, x = X chromosome affected by hemophilia, and Y = Y chromosome.
If an Xx female and XY male have children, what fraction of their offspring will have an affected chromosome, and what fraction is likely to be affected by hemophilia?
(1 point)
A. 1/4 and 1/2
B. 1/2 and 1/4
C. 1/2 and 1/3
D. 1/4 and 1/4
I've been stuck on this question for a while, may someone please assist?
Answer:
B. 1/2 and 1/4
Explanation:
Hemophilia is a rare disease that has to do with the inability for blood to clot. It is inherited on the X chromosome, hence, it is said to be X-linked. It is usually passed from mother to son. According to this question;
X - unaffected X chromosome
x = X chromosome affected by hemophilia
Y = Y chromosome
Therefore, in a cross between a Xx female (carrier) and a XY male (unaffected), the following chromosomes will be present in the gametes produced by each parent:
Xx- X and x gametes
XY- X and Y gametes
Using these gametes in a punnet square (see attached image), offsprings with genotypes: XX, Xx, XY and xY will be possibly produced.
XX (1) - unaffected female
Xx (1) - unaffected but carrier female
XY (1) - unaffected male
xY (1) - affected male (have hemophilia)
Based on the questions;
- 2 out of the possible 4 children will have the affected chromosomes i.e. both xY son and Xx daughter have the affected (x) chromosome. Hence, the fraction is 1/2
- 1 out of the 4 possible children is affected by hemophilia, which is the xY son. Hence, the fraction is 1/4.
one limitation to science is that it cannot answer questions about ______ ?
Answer: Phenomena.
Explanation: That includes topics such as infinity, the future and god.
Hope this helps!
Match each statement to the type of behavior it describes. Jenna published the results of her latest experiment for the public to see. Malcolm altered an experiment to be able reach his desired conclusion. Elena keeps complete records of all her experiment results. Neal shared the results of his field study even though they didn’t support his hypothesis.
Answer:
See the answer below
Explanation:
It may seem that the question is incomplete. The complete question reads:
Match each statement to the type of behavior it describes. Jenna published the results of her latest experiment for the public to see. Malcolm altered an experiment to be able reach his desired conclusion. Elena keeps complete records of all her experiment results. Neal shared the results of his field study even though they didn’t support his hypothesis. Put each description to the group it belongs to. 1.Responsible 2.Irresponsible.
To answer the question:
Responsible behavior
Jenna published the results of her latest experiment for the public to see.Elena keeps complete records of all her experiment results.Neal shared the results of his field study even though they didn't support his hypothesis.Irresponsible behavior
Malcolm altered an experiment to be able to reach his desired conclusionResponsible behaviors are those that support responsible scientific practices and do not jeopardize the objective nature of research. Every data during experiments must be well kept and after thorough analysis, results must be published fro the public to see irrespective of whether it agrees or disagrees with the original hypothesis.
Altering an experiment in order to achieve the desired result is grossly irresponsible, as this eliminates the objectivity that should be the main goal of every experiment. Bias must be eliminated from every scientific experiment.
Which describes a grizzly bear’s habitat? all the biotic factors in the ecosystem all the abiotic factors in the ecosystem the role of the bear in the ecosystem the physical area where the bear lives
Answer:
it is D
Explanation:
A grizzly bear’s habitat comprises of the physical area where the bear lives
What is a habitat?A habitat is defined as the dwelling home of living organisms.
There are three major types of habitat; namely:
Terrestrial habitatAquatic habitatArboreal habitatTerrestrial habitat is the land habitatAquatic habitat is the water habitatArboreal habitat is the tree habitatLearn more about habitat:
https://brainly.com/question/25832580
I WILL GIFT BRAINLIEST FOR THE RIGHT ANSWER!! In the following reaction, if you wanted to produce more chlorine gas (Cl2), what should you do? (2 points) 4HCl + O2 ⇄ 2H2O + Cl2
Answer:
B. the rate of forward reaction increases .
what is the first president of of Canada
Answer:
Sir John Alexander Macdonald was the first prime minister of Canada
A key component in the formation of organic compounds, such as nucleic acids and ATP
The correct answer is Phosphorus I just took the test.
When does facilitated diffusion occur
Answer:
Facilitated diffusion takes place due to a difference in concentration on both sides of the membrane, in the direction of the lowest concentration, and does not require energy.
Which major processes were needed for the origin of life on Earth?
Answer:
I think it's a climate
Identify the graph that matches each of the
following stories:
a. I had just left home when I realized I had forgotten my books so I went back to pick them up.
b. Things went fine until I had a flat tire.
c.I started out calmly, but sped up when I realized I was going to be late.
Answer:
A. 4, B. 2, C. 1
Explanation:
Why is The sun is the ultimate source of energy
for all living organisms.'
Answer:
"Sun is the ultimate energy source for all living organisms."
✴This is because plants need sunlight to make food through photosynthesis. This food is consumed by the animals and human-beings. Carnivores indirectly depend on plants for their food. So, if Sun is not there there will be no life on earth.
✴Secondly, sunlight is a good source of Vitamin-D.
Vitamin D is essential for strong bones, because it helps the body use calcium from the diet. Traditionally, vitamin D deficiency has been associated with rickets, a disease in which the bone tissue doesn't properly mineralize, leading to soft bones and skeletal deformities. So if sunlight is not there it can result in loss of Vitamin-D which can cause deficiency diseases.
✴If sunlight is not there there will be no day on Earth. Light will not reach our Earth. Every time there will be only darkness.
Answer From Gauth Math
50 POINTS In your own words, describe the connection between the heat from earth’s core and the movement of tectonic plates.
Answer:
ert
Explanation:
Hi please answer the following questions
•Mercury is used in temermeter.Give reason!
•Name two non flowering plants
•Some leaves are modified to trap insects. Give reason.
Answer:
It's used in thermometers because it has high coefficient of expansion.
conifers,mushrooms
plants trap insects because they grow in soil which is usually thin and is also poor in nutrients , so they eat insects to fulfill their nuttient requirement
HERE YOU GO HOPE IT WILL HELP YOU
Write any two factors that affect the efficiency of machine
Answer:
The factors that affect the efficiency of machine are
Conductor content _ load dependent Magnetic steel _ mainly constantI HOPE I HELP YOU.
Which of the following would be examples of abiotic factors in a mountain river ecosystem?
fish, algae, and sand
sand, water, and fish
sand, water, and minerals
water, fish, and algae
What is the purpose of the Synthesis (S) phase of the cell cycle?
A. Create a copy of the cell
B. Synthesize extra organelles
C. Duplication of RNA
D. Duplication of DNA
The purpose of the Synthesis (S) phase of the cell cycle is the duplication of DNA. The correct option is D.
What is the cell cycle?A cell cycle is a process of dividing a cell into two cells. It is a four-stage process that includes increasing the cell, diving the DNA, and the ready for cell dividing and then dividing into two cells.
The S phase is the synthetic phase. The phase includes duplication of DNA and dividing of DNA. During cell division or DNA replication, this process occurs.
So, all other statements are false, in the S phase, the DNA duplicates in the nucleus and the cell will ready to duplicate for cell division and mitosis. It is one of the processes of cell division or DNA replication.
Thus, the correct option is D. Duplication of DNA.
To learn more about the cell cycle, refer to the link:
https://brainly.com/question/12277305
#SPJ5
At temperatures higher than the maximum growth temperature for an organism:
a. proteins are permanently denatured. membranes become too fluid for proper function.
b. hydrogen bonds within molecules are broken.
c. hydrogen bonds are broken and proteins are permanently denatured.
d. hydrogen bonds are broken, proteins are denatured, and membranes become too fluid.
Answer:
The correct answer is option d, that is, hydrogen bonds are broken, proteins are denatured, and membranes become too fluid.
Explanation:
The maximum growth temperature refers to the highest temperature at which growth can take place. Let us take an example of bacteria, it is found that each bacterial species possess a requirement of specific growth temperature, which is mainly determined by the requirement of the temperature of its enzymes. Each of the organism exhibits an optimum growth temperature, a minimum growth temperature, and a maximum growth temperature.
When for an organism, the temperature goes more than its maximum growth than it results in the dissociation of the hydrogen bonds, denaturation of the proteins, and even the membranes become too fluid. This can even result in the death of the species. However, there are some of the organisms, which can thrive high temperatures known as thermoduric organisms, but they fail to grow effectively at such temperatures.
How are mitosis and binary fission similar?
A. They produce identical daughter cells.
B. They occur only in prokaryotes.
C. They involve division of nuclei as well as cytoplasm.
D. They occur only during sexual reproduction.
Answer:
They produce identical daughter cells.
1.A virus mutates, and therefore it has which of the following traits of living things?(1 point)
It uses energy
It evolves.
It grows and develops.
It is made of cells.
2.Compare a virus to a unicellular organism.(1 point)
Viruses reproduce through asexual reproduction; unicellular organisms need a host cell.
Neither unicellular organisms nor viruses respond to stimuli.
Unicellular organisms have a cell membrane made from a lipid bilayer; viruses have a protein coat.
Viruses need energy; unicellular organisms do not need energy.
3.Summarize the lytic cycle.(1 point)
A virus copies its genetic material and then splits its cell membranes in half to form identical viruses.
A virus lays eggs on the host cell’s protein coat, which then hatch and move on to infect other cells.
The viral DNA incorporates itself with the host cell’s and replicates whenever the host cell replicates itself.
A virus injects its genetic material into the host cell, copies itself, and then forms new viruses that burst out of the host cell.
4.Differentiate between the lysogenic and lytic cycles.(1 point)
The host cell copies its own DNA during the lytic cycle.
The host cell is destroyed during the lytic cycle.
The virus injects DNA into the host cell during the lysogenic cycle.
Viral proteins are synthesized during the lysogenic cycle.
5.Infer why doctors recommend people, especially elderly and those with weak immune systems, get the flu vaccine every year.(1 point)
They should get the flu vaccine because viruses mutate.
They should get the flu vaccine because their bodies already have a resistance.
They should get the flu vaccine because viruses do not mutate.
They should get the flu vaccine because their bodies do not build up resistance.
Please i really need help
Answer:
1. It grows and develops
2. Unicellular organisms have a cell membrane made from a lipid bilayer; viruses have a protein coat.
3. A virus injects its genetic material into the host cell, copies itself, and then forms new viruses that burst out of the host cell.
4. The host cell is destroyed during the lytic cycle.
5. They should get the flu vaccine because their bodies do not build up resistance.
Explanation:
These are the answers I chose from when i did it 10 minutes ago, they wont let me go back to the quick check to confirm it, but this was the best I could do.
The trait of living things that's depicted by a virus that mutates is that it evolves.
The difference between a virus and a unicellular organism is that Unicellular organisms have a cell membrane made from a lipid bilayer; viruses have a protein coat.
The lytic cycle is when a virus injects its genetic material into the host cell, copies itself, and then forms new viruses that burst out of the host cell.
The difference between the lysogenic cycle and the lytic cycles is that the host cell is destroyed during the lytic cycle.
The reason why doctors recommend people, especially the elderly and those with weak immune systems, get the flu vaccine every year is because they should get the flu vaccine because viruses mutate.
It should be noted that when a virus mutates, it shows its ability to evolve. In such a case, there's transformation and development regarding the virus.
People are advised to get the flu vaccine every year because viruses mutate. In this case, getting the flu vaccine will help protect the person from the virus.
Getting a flu vaccine is vital especially for the people that have a low immune system as well as for the older people who are already weak.
In conclusion, the correct options are B, C, D, B, and A.
Read related link on:
https://brainly.com/question/23854893
Immigration will cause a population to increase if
A. the birth rate is greater than the death rate
B. the birth rate and death rate are balanced
C. the birth rate doubles and the death rate does not
D. the death rate is greater than the birth rate
Answer:
If the birth rate is greater than death rate.
What is the largest source of waste generation?
A. Individuals and industry
B. Individuals and agriculture
C. Developing countries
D. Industry and agriculture
Answer: B. Individuals and agriculture
Explanation:
how do plants use carbon dioxide
A.They release it as waste
B.To build proteins
C.They store it as fuel in limestone deposits
D.To produce sugars
Answer:
to build protein............
Answer:
C. To produce sugars.
HOPE IT HELPS YOU.For a scientific theory to be valid, it must allow you to
O perform experiments
obtain new results each time.
find a new, more complex explanation
Make predictions
Answer:
Explanation:
That's quite a bit of points. Offer 20 next time (which shows up as 10).
Not all experiments lend themselves to this, but the best ones do. Make predictions. The startling experiments (the best of them) certainly allow you to make predictions
Most of the time, experiments confirm what was originally thought. It is, however, the best answer among this bunch.
A is also possible, but not always. I will stick with D, but I think others will pick A.
explain crop modifications in your own words.
Explain osmosis using this image
Answer:
A liquid moving from an area of low concentration, to an area of high concentration through a semi-permiable membrane.
Explanation:
Hope this helps :)
I have four brothers
"This is what type of
observation?
what is role of the stomach in the human digestion system
Explanation:
The stomach is a hollow organ, or "container," that holds food while it is being mixed with stomach enzymes. These enzymes continue the process of breaking down food into a usable form. Cells in the lining of the stomach secrete a strong acid and powerful enzymes that are responsible for the breakdown process. When the contents of the stomach are processed enough, they’re released into the small intestine.
Answer:
first the stomach secretes the gastric juice which is made up of digestive enzymes and digest the hydrochloric acid and plays a big role in digesting nutrients.
Explanation:
hope it helps
differences between regolith and bedrock in 5 points
Answer:
Explanation:
Bedrock is the hard, solid rock beneath surface materials such as soil and gravel. ... Bedrock also underlies sand and other sediments on the ocean floor. Bedrock is consolidated rock, meaning it is solid and tightly bound. Overlying material is often unconsolidated rock, which is made up of loose particles.
Regolith is a blanket of unconsolidated, loose, heterogeneous superficial deposits covering solid rock.
Sort the tiles to show the characteristics of life that they describe.
Answer:
The characteristics of the life shared by all living organisms.
Explanation:
There are seven characteristic of life shared by living things.
Reproduction :- these characteristics are performed that single cell organisms diving to the cell prepares to the form of the second new cell.Regulation :- regulation perform that complex and require to the internal functions and contain that specific function.Energy processing :- the energy process performed that source of energy for the metabolic activities, and convert the chemical energy.Homeostasis :- these characteristics maintain the internal conditions and diverse the chemical process.Growth :- these characteristics provide the instruction direct cellular growth and development .Sensitivity :- that can perform by the plant can be source of light, considered by the positive response .Order :- this is highly organized structure and cell complex to the molecules.What is an advantage of electron microscopes compared to light microscopes?
They have a much higher power of resolution.
They can be used to view live specimens.
They are inexpensive and commonly found in classrooms.
They are helpful during dissections.
Answer:
They have much higher power of resolution.as compared to light microscope.