Which of the following relies on amolecule binding to the repressor to prevent the repressor from binding to the operator? a. repression
b. gene expression
c. an operon
d. induction

Answers

Answer 1

Answer:

Answer:

d. induction

Explanation:

A repressor is a protein capable of inhibiting target gene expression by binding to both operator sites and gene silencers. A DNA-binding repressor inhibits the interaction between the RNA polymerase and the DNA promoter sequence, thereby suppressing transcription into RNA. Moreover, the RNA-binding repressor is a protein that binds to the messenger RNA (mRNA) molecule in order to prevent its translation into protein. An inducer can start transcription by interacting with the repressor, thereby separating it from the DNA operator sequence.

Related Questions

A population is made up of individuals where 149 have the A1A1 genotype, 18 have the A1A2 genotype, and 154 have the A2A2 genotype. What is the allele frequency of A1? Answer to 2 decimal places.
It is often possible to predict the number of times a membrane protein crosses the membrane by determining how many short sequences of hydrophobic amino acids are present in the amino acid sequence of the protein. Choose the correct explanation. It is often possible to predict the number of times a membrane protein crosses the membrane by determining how many short sequences of hydrophobic amino acids are present in the amino acid sequence of the protein. Choose the correct explanation. a. Sequences of hydrophilic amino acids are the segments of the protein that span the membrane. b. Sequences of hydrophobic amino acids are the segments of the protein that span the membrane. c. Sequences of hydrophobic amino acids are the segments of the protein that dissolve in the membrane. d. Sequences of hydrophilic amino acids are the segments of the protein that dissolve in the membrane.
Please help me with this question:)
Give 3 examplesof other organ systems in the human body.
Which describes the particle or particles that are in the nucleus of anatom? *1. proton and electron2.electron only3.electron and neutron4.neutron and proton

Condensation of water droplets causes the formation ofA. rain
B. lakes
C. clouds
D. water vapor

Answers

It’s c . Clouds please mark
Me brainliest

The answer is C. Clouds

Which of the following is not true about enzymes?They increase the \Delta G of reactions.
They are usually made of amino acids.
They lower the activation energy of chemical reactions.
Each one is specific to the particular substrate, or substrates, to which it binds.

Answers

Enzymes do not increase delta G of a reaction. Delta G remains the same in an enzymatic reaction. Enzymes fasten reactions by either decreasing the activation energy or by producing binding energy and in both of these cases there is no impact on delta G so it remains the same, that is why statement 1 is incorrect. Statement 2 is correct because most of the enzymes are made up of proteins which is a polymer of amino acids. Statement 3 is also correct because enzymes lower the activation energy as already mentioned. Statement 4 is correct too. Enzymes are very specific to the kind of substrate to which they bind. Enzymes are bond specific, stereo specific & group specific of the substrate to which they bind.

Final answer:

Enzymes are biological catalysts that lower the activation energy of reactions, are made of amino acids, and are specific to their substrates. They do not, however, increase the Gibbs free energy (ΔG) of the reactions they catalyze.

Explanation:

The statement 'they increase the ΔG of reactions' is not true about enzymes. Here 'ΔG' represents the change in Gibbs free energy. In a chemical reaction, enzymes function to lower the activation energy which speeds up the reaction, but they do not increase the ΔG of the reaction.

The other statements about enzymes made of amino acids, lowering the activation energy, and being substrate-specific are true. In essence, enzymes are biological catalysts that speed up reactions but do not change the overall energy change (ΔG).

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In humans, one function of the skin is to prevent water loss. Skin releases water or holds in water when necessary.Which two structures in plants have a similar function to skin?

> roots and chloroplasts

> phloem and roots

> cuticle and stomata

> stomata and phloem

Answers

Cuticle and stomata in plants have a similar function to skin.

What are the functions of cuticles?

The cuticle is well known for its functions as a diffusion barrier limiting water and solute transport across the apoplast and for its protection of the plant against chemical and mechanical damage, as well as pest and pathogen attack.

In some higher plants, the cuticle is a water-impervious protective layer covering the epidermal cells of leaves and other parts and limiting water loss. It consists of cutin, a waxy, water-repellent substance allied to suberin, which is found in the cell walls of corky tissue.

The cuticle itself comprises three layers: the cuticular layer; cuticle proper; and epicuticular waxes. The cuticular layer is the innermost layer, which overlays the primary wall and consists of cellulose and other polysaccharides along with cutin and wax.

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Answer:

Explanation:

The most common type of virus that causes foodborne illness is thea. tobacco mosaic virus
b. cytomegalovirus
c. norovirus
d. poliovirus

Answers

The most common type of virus that causes foodborne illness is the norovirus. Norovirus is not usually dangerous infection that can cause diarrhea, vomiting, and stomach pain. Infection by norovirus can be transmitted from person to person (directly) or via contaminated water and food (indirectly).

A woman and a man are both heterozygous for a recessive allele for a rare genetic disease. If they have one child, what is the probability that he or she will be affected? If they have two children, what is the probability that at least one of them will be affected?3/4, 7/16
1/4, 7/16
1/4, 3/4
3/4, 1/4
7/16, 1/4

Answers

Answer:

Probability that at least one of them will be affected = 3/16 + 3/16 + 1/16 = 7/16

Explanation:

If both parents are heterozygous for a genetic disease; Xx and Xx

The offspring's they will produce will be as follows ; XX, Xx, xX, xx

Probability that first child will be affected = 1/4

Probability that first child will not be affected = 1 - 1/4 = 3/4

Probability that first child have it and second does not = 1/4 x 3/4 = 3/16

Probability that first child does not have it, second child have it = 3/4 x 1/4 = 3/16

Probability that both of them will have it = 1/4 x 1/4 = 1/16

Hence, Probability that at least one of them will be affected = 3/16 + 3/16 + 1/16 = 7/16

All of these processes help a cell maintain homeostasis except:A. making new molecules for growth.
B. transporting oxygen across the cell membrane.
C. breaking down unneeded molecules.
ОО
D. taking in wastes from other cells

Answers

Final answer:

The correct answer is D. taking in wastes from other cells.

Explanation:

The correct answer is D. taking in wastes from other cells.

Homeostasis is the process by which cells, organisms, or systems maintain stable internal conditions. To achieve and maintain homeostasis, cells perform various processes such as making new molecules for growth, transporting substances across cell membranes, and breaking down unneeded molecules. However, taking in wastes from other cells does not contribute to maintaining homeostasis and is not a recognized process for this purpose.