Asked Dec 2, 2019

Which of the following molecules is a protein produced by a regulatory gene?

a) operon

b) inducer

c) promoter

d) repressor


Expert Answer

Step 1

The correct answer is option (d) repressor. Repressor is a protein produced by a regulatory gene. A repressor is RNA or DNA binding protein that upon binding to an operator prevents (inhibits) the expression of one or more genes.

Step 2

Option (a) operon is not correct because operon is a set of genes that transcribed under the command of an operator gene and it is not a protein.

Step 3

Option (b) inducer is not correct because it is a molecule that regulates the expression of gene...

Want to see the full answer?

See Solution

Check out a sample Q&A here.

Want to see this answer and more?

Solutions are written by subject experts who are available 24/7. Questions are typically answered within 1 hour.*

See Solution
*Response times may vary by subject and question.
Tagged in



Molecular Biology

Related Biology Q&A

Find answers to questions asked by student like you

Show more Q&A add

Q: Name the three layers of connective tissue membranes in muscles and mention to their locations.

A: Skeletal muscles can contract and cause movement. Each skeletal muscle is composed of various organi...


Q: Describe filtration, reabsorption and secretion. Where in the nephron, these events take place and n...

A: Process of filtration, reabsorption, and secretion in nephron are described below:


Q: Name the types of muscles and mention to characteristics of each.

A: Muscle is a soft tissue which contain protein filaments of actin and myosin that slide past one anot...


Q: What are the changes that the ovaries and the uterus undergo during the female reproductive cycle?

A: The reproductive cycle or the menstrual cycle is the cycle of events and changes in the organs of re...


Q: What is decompression sickness and what is the cause

A: Air mainly contains oxygen and nitrogen gases. As the air comes under high pressure, it gets compres...


Q: Please answer this question Thank you

A: Since we are entitled to answer up to 3 sub-parts, we’ll answer the first 3 as you have not mentione...


Q: What explains the correlation between species richness and disturbance frequency?

A: Disturbance is defined as any process that removes biomass from the community. It influences species...


Q: Can you explain a brief description of each of the methods used?

A: The experiment was performed for rearranging the genes of the yeast strain and further study was don...


Q: How do you draw the resolution to the double Holliday junction? Each step explained in detail.

A:  Double Holliday junction is a structure that is formed at the instant when the genetic recombinatio...