Answers
Answer:
B. Gene expression is influenced by high lactose levels in the environment.
Explanation:
The lactose operon (lac operon) functions for the metabolism and transport of lactose in several bacteria.
Gene expression is influenced by high lactose levels in the environment as genes are expressed in the presence of high level lactose and absence of glucose. High level lactose carry an activator protein called catabolite activator protein (CAP), which let the RNA polymerase do transcription of the operon.
Hence, the correct option is "B".
Answer:
C
Explanation:
^he said it was right^
have an amazing day! :)
Related Questions
who invented biology
Answers
Answer:
The term biology in its modern sense appears to have been introduced independently by Thomas Beddoes (in 1799), Karl Friedrich Burdach (in 1800), Gottfried Reinhold Treviranus (Biologie oder Philosophie der lebenden Natur, 1802) and Jean-Baptiste Lamarck (Hydrogéologie, 1802).
Explanation:
When was biology invented?
Antiquity
The science of biology was invented by Aristotle (384–322 BC). Before Aristotle, many Greek philosophers had speculated about the origins of the Earth and of Life, but their theorizing was unsupported by empirical investigation.
how can an objects volume be determined using water displacement ?
Answers
Answer:
Using a graduated cylinder.
Explanation:
By using a graduated cylinder we can determine the volume of liquids.
(1)Volume of liquid=10cm^3
(2)Volume of liquid after adding an irregular substance exceeds the first one by 20cm^3
(1)V+(2)V=(3)Vtotal
10cm^3+20cm^3=30cm^3
Hope this helps ;) ❤❤❤
ASAP What is a photosynthetic pigment? What is a photosynthetic pigment? A. An oxygen based compound that captures light energy. B. A light sensitive compound that changes color. C. A colored compound that captures light energy. D. A manmade compound that reacts to light.
Answers
I think the answer is A.
Answer:
A. An oxygen based compound that captures light energy.
The process of ________ involves a carrier protein that can transport a molecule across the cell membrane down its concentration gradient.
Answers
Answer:
Answer is Facilitated diffusion.
The process of facilitated diffusion involves a carrier protein that can transport a molecule across the cell membrane down its concentration gradient.
What is facilitated diffusion?The process of spontaneous passive movement of molecules or ions across a biological membrane by particular transmembrane integral proteins is known as facilitated diffusion.
To transfer molecules from one side of the membrane to the other without consuming energy, facilitated diffusion is required. Large and charged molecules require facilitated diffusion more than smaller molecules. These compounds are unable to readily diffuse through the plasma membrane.
It happens when chemicals like glucose or amino acids flow effortlessly from a high concentration to a low concentration.
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6 points about carnivorous
Answers
Answer:
a carnivorous is a plaant and animal that eats the flesh of animal.
Which of the following best describes how crossing over occurs during meiosis?
Answers
Answer:
first give the following options bro..
What is the product made by the electron transport chain?
A. Pyruvate
B. ADP
C. ATP
D. Glucose
Answers
Answer:
Hey mate!
The correct answer is option. C.
ATP
Explanation:
the final product made by the electron transport chain is water and ATP.
hope it helped you:)
Answer:
Hey mate the answer is ATP
Explanation:
Shell coiling in some snails has been found to be determined by the genotype of the snail's mother, rather than its own genotype. This is termed:
Answers
Answer:
maternal effects
Explanation:
The correct answer would be maternal effects.
The maternal effect is a genetic phenomenon that is characterized by an organism having the phenotypic expression that is compatible with the genotype of its mother irrespective of the organism's genotype itself.
This condition often occurs as a result of the mother supplying messenger RNA or protein to the egg that results in the formation of a zygote/embryo. Consequently, the genome of the mother dictates the functionality of the molecule in such offspring.
A purebred tall pea plant is cross-pollinated with a tall, heterozygous pea plant. Use a Punnett square to determine the probability the offspring inherita
recessive short allele. (I point)
75%
25%
0%
50%
Answers
Answer:
The correct answer is - 25%.
Explanation:
A cross pollination between purebred tall pea plant and a heterozygous pea plant occurred as per the given condition. TT is the allele representation of the purebred plant and heterozygous plant is represented by Tt, so the gametes will be formed would be - T & T and T & t allele.
The Punnett square of this cross is attached with the answer,
So the probability of short allele would be:
= (2/8) *100 , (where 2 is the number of short allele in offspring where 8 is total number of alleles)
= (1/4) *100
= 25%
Which describes the geological time of the first land plants? Conifers appeared after the first flowering plants. Conifers first appeared around 182 million years ago. The first flowering plants appeared around 240 million years ago. The first flowering plants were introduced toward the end of the Mesozoic era.
Answers
The geological time of the first land plants were introduced toward the end of the Mesozoic era.
What is Mesozoic era?This era is referred to as the age of Conifers and it lasted from about 252 to 66 million years ago.
In this era, there was the presence of most ancestors of plants and animals which is why it being a period where first land plants were introduced is appropriate.
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The main evolutionary consequence of the process of 'plate tectonics' has been
Answers
The movement of plate tectonics produces new environments and gives organisms a new environment that they now need to adapt and evolve to fit into.
Which of the following is considered a Time/Temperature control for safety (TCS) food?
Answers
Is fertile soil renewable or non renewable?
Answers
Answer:
Its preservation is essential for food security and our sustainable future. Soil is a finite resource, meaning its loss and degradation is not recoverable within a human lifespan
Explanation:
OPEN ENDED QUESTION
Why should you NOT drink seawater even
in extreme survival situations? Please
use at least 3 vocabulary words from the
video.
Answers
Answer:
sea water has lot of salt which is dangerous to human health
Explanation:
i don't seem to see any video.i which I could answer your questions
please give me brainliest
PLEASE ANSWER QUICK!Can the eukaryotic cells have a flagellum? Why or why not?
Answers
Answer: Yes.
Explanation: Both prokaryotic and eukaryotic flagella can be used for swimming but they differ greatly in protein composition, structure, and mechanism of propulsion. ... An example of a eukaryotic flagellate cell is the mammalian sperm cell, which uses its flagellum to propel itself through the female reproductive tract.
Enzymes secreted by the lining of the stomach to aid digestion are specially designed to function under what conditions?
a. Low temperature
b. Low pH
c. High pressure
d. High pH
Answers
Answer:
A, Low tempature
Explanation:
Im sure you know what denaturing is by now, and denaturing of an enzyme happens when it gets too hot, so Low tempature is the answer, hope this helps, mark me a brainliest if you can
The lactic acid generated in the body of a cricketer is first converted to glycogen in 1) Muscles 2) Liver 3) Blood 4) Both 2 and 3
Answers
Answer:
2) liver
Explanation:
the bloods transports the lactic acid to the liver to be converted into glycogen
QI the father
13. A father and mother claim they have been given the wrong baby at the hospital. Both parents are
blood type A. The baby they have been given is blood type o. Does the genetic evidence support
their claim?
Answers
No, the claim is not based on scientific evidence because to heterozygous parents with genotype AO may have offspring with O phenotype and therefore OO genotype (proportion 1/4 of descendence).
What is the ABO blood type?The ABO blood type is a group of phenotypes controlled by a single locus, which is based on the alleles that encode surface antigens in red blood cells. The O phenotype is due to the recessive allele, while the A allele is dominant and therefore masks the O allele in heterozygous individuals.
Therefore, we can conclude that parents having the AO genotype may produce offspring with OO genotype
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Which type of wetland includes a mixture of salt water and fresh water?
Answers
Coastal lwetlands include a mixture of salt waler and fresh water This answer has been confirmed as correct and helpful. Hope it helps
The image below shows a club fungus. A club fungus has an erect, above-ground fruiting body and long, branching, underground hyphae.
How do the structures of the fruiting body and hyphae relate to their functions?
A.
The fruiting body is tall to allow for spore dispersal, while the hyphae are branched to increase the absorption of nutrients.
B.
The fruiting body is curved to help the uptake of decaying plant material, while the hyphae are long to increase gas exchange.
C.
The fruiting body is tall to maximize photosynthesis, while the hyphae are branched to support the release of waste products.
D.
The fruiting body is curved to improve absorption of water, while the hyphae are long to allow for reproduction.
Answers
Answer:
The fruiting body is curved to improve absorption of water, while the hyphae are long to allow for reproduction.May 12, 2020
Explanation:
If it helps you mark me as a brainleast
Answer:
Explanation:
d
what is endocrinegland?
Answers
Which of the following not an enzyme
mediated process
1) G1
and G2
phases of meiosis
2) S-phase of mitosis
3) Pachytene of meiosis-I
4) None of the above
Answers
Answer:
4) None of the above
Explanation:
Enzymes are known for mediating biological or chemical processes.
Meiosis and mitosis both are part of a biological process called cell cycle or cell division.
The cell cycle is mediated by enzyme cyclins and cyclin-dependent kinases (CDK). cyclin-CDK in G1 phase helps to prepare the cell for S phase. cyclin-CDK also drives Pachytene of meiosis-I
During S-phase of mitosis, ubiquitin ligase helps in mitotic spindle assembly.
Hence, the correct answer is "4) None of the above"
When brown iodine is exposed to starch it turns dark purple. In an experiment, you placed a cornstarch solution in a small plastic bag. Next, you placed the bag in a beaker of water containing 10 drops of iodine. If the solution in the plastic bag turned dark purple (Select all that apply)
a) the plastic bag was permeable to cornstarch.
b) the plastic bag was permeable to iodine.
c) the iodine moved into the plastic bag.
d) the cornstarch moved into the beaker.
e) the plastic bag was selectively permeable.
Answers
Answer:
b) the plastic bag was permeable to iodine
the plastic bag was selectively permeable
the iodine moved into the plastic bag.
the plastic bag was permeable to cornstarch.
Explanation:
The experimental set up represented the concept of osmosis.That is the movement of water molecules from the region of higher water potential to region of lower water potential through a semipermeable membrane(a cell membrane which only allows water and certain molecules to pass through,but restrain other molecules through its pores.
Generally potassium iodine test is the standard test for starch.
Therefore, in the question,water moves iodine molecules as iodine solution(from high water potential) to move across the paper bag(semi permeable membrane) to the reach the corn solution.(low water potential,high solute potential).This turns the starch in the corn solution blue-black/purple.
If the solution in the plastic bag turned dark purple:
the plastic bag was permeable to iodine. That is option (B)the iodine moved into the plastic bag. That is option (C)the plastic bag was selectively permeable. That is option (E)To test for the presence of starch in a solution, iodine solution is used. This gives a blue-black coloration which occurred due to the formation of a starch-iodine complex.
From the above experiment, the plastic bag which contains the corn starch solution, separates the solution from water containing 10 drops of iodine.
The turning of the solution, inside the plastic bag, into blue black signifies the formation of starch-iodine complex between the cornstarch solution the iodine water.
The reaction was able to occur because the plastic bag, which is selectively permeable to iodine, allowed the movement of iodine from the beaker of water into it. This is called diffusion.
Therefore, if the solution in the plastic bag turned dark purple it means that the plastic bag which is semi permeable allowed the movement of iodine into it.
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Every interaction with the outside world is because of A) epithelial tissue B) connective tissue C) nervous tissue D) muscular tissue
Answers
Answer:
A cutaneous membrane is a multi-layered membrane composed of epithelial and connective tissues. The apical surface of this membrane exposed to the external environment and is covered with dead, keratinized cells that help protect the body from desiccation and pathogens....
Organisrns that transfer diseases to hurnans are
O hosts
O pathogens
O parasites
O vectors
Answers
It works because your brain creates images from dots. That’s how you can watch shows that you like a whole lot.
Answers
Answer:
The fovea works because your brain creates images from points.
Explanation:
The fovea is located in the center of the eye's retina. It is the structure capable of capturing stitches from what you are viewing and sending those stitches to the brain, which will "stitch" all stitches together and form an image. In summary, the fovea is able to project an image to the brain through pieces of the image, it is formed by cones that allow the transmission of light to the photoreceptors of the eyes.
The fovea works since your brain makes pictures from points.
BrainThe fovea is found within the center of the eye's retina.
It is the structure able of capturing stitches from what you're seeing and sending those fastens to the brain, which can "fasten" all fastens together and frame an picture.
The fovea is able to venture an picture to the brain through pieces of the picture, it is shaped by cones that permit the transmission of light to the photoreceptors of the eyes.
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Why it is important to emasculate and bag wheat, oats and groundnut flowers before a cross is made by using another desirable plant.
Answers
Answer:
There are no options in this question but it can be answered using general knowledge. The answer is:
In order to prevent self-pollination or natural cross-pollination of the wheat, oats or groundnut flowers.
Explanation:
The flowers of wheat, oat and groundnut plants have something in common, which is the fact that they are all bisexual flowers i.e. flowers that have both male and female reproductive parts. Hence, they tend to undergo self-pollination i.e. transfer of pollen to female reproductive part on the same flower.
To prevent this from occuring when a desirable trait is wanted during crop breeding procedures, a process called EMASCULATION is carried out. Emasculation is the process whereby the stamen (male flower) or pollen of a plant is removed without destroying the female part of the flower. This is done in order to discourage self-pollination in plants with a bisexual flower.
Also, after emasculation, the flowers are bagged in order to prevent natural cross-pollination i.e. to prevent pollens from other plant from being transferred to the stigma of the desired plants in random manner.
Hence, emasculation and bagging is important to make sure the desired plants are still viable for the crop breeding procedure.
Name two structural characteristics that triglycerides and phospholipids have in common.
Answers
Answer:
They both have fatty acids.
Explanation:
which vary in number whereby triglycerides has three fatty acids while phospholipids have two fatty acids.
Answer:
Explanation:
which vary in number whereby triglycerides has three fatty acids while phospholipids have two fatty acids.
make sure to add
two fatty acids
glycerol
carboxyl group
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.
Answers
Answer:
Pyruvate helps in the production of ATP.
Explanation:
The molecule of pyruvate converted into acetyl CoA. Then each molecule which is produced during glycolysis loses electron and carbondioxide releases. After the breakdown of pyruvate, the electrons loses by pyruvate are transferred to NAD+ in order to produce NADH, which will be used by the cell to produce energy molecule such as ATP. So we can say that pyruvate plays a vital role in the formation of ATP molecule.
What is the purpose of the subheadings?
Answers
Answer:
Its purpose is to pull readers further into your content so as to stay long enough to realize how stellar the information and writing are and not only continue reading but return for new content as it is posted. What the headline does for the post, the subhead does for each individual section of content
Explanation:
Answer: the purpose of subheading are to tell you about what you will be reading about in the paragraph to sentence
Explanation: