EBK BIOLOGY
EBK BIOLOGY
4th Edition
ISBN: 8220102797376
Author: BROOKER
Publisher: YUZU
bartleby

Videos

Question
Book Icon
Chapter 13, Problem 1TY
Summary Introduction

Introduction: Genes are the segment of DNA that are referred to as a basic functional and physical unit of hereditary. Some genes contain information that helps in the synthesis of proteins.

Expert Solution & Answer
Check Mark

Answer to Problem 1TY

Correct answer: The constitutive genes are expressed at a relatively constant level at all times. Hence, the correct answer is option d.

Explanation of Solution

Reason for correct answer:

Constitutive genes are also known as housekeeping genes and are required for maintaining the basic cellular functions. Under normal conditions, the constitutive genes are expressed in all the cells of the body at a constant level. The products of constitutive genes support the basic biochemical processes in the cell.

Option d. is given as, “constitutive”.

The genes that are expressed at a relatively constant level at all times are known as constitutive genes. Hence the correct answer is option d.

Reasons for incorrect answer:

Option a. is given as, “inducible”.

Inducible genes are also known as facultative genes, and are only needed as an opposition to a constitutive gene. Hence, option a. is incorrect.

Option b. is given as, “repressible”.

Repressible genes are only required during the growth and maintenance of cell. Hence, option b. is incorrect.

Option c. is given as, “positive”.

Positive genes are not present in the cells of an organism. Hence, option c. is incorrect.

Option e. is given as, “structural”.

Structural genes help in the construction of cellular structures like organelles and membrane. The RNA products of structural genes are not involved in the regulation of the cell. Hence, option e. is incorrect.

Hence, the options a., b., c., and e. are incorrect.

Conclusion

At relatively constant levels, the constitutive genes are expressed at all times.

Want to see more full solutions like this?

Subscribe now to access step-by-step solutions to millions of textbook problems written by subject matter experts!
Students have asked these similar questions
Which of the following is NOT an example of passive immunization? A. Administration of tetanus toxoid B. Administration of hepatitis B immunoglobulin C. Administration of rabies immunoglobulin D. Transfer of antibodies via plasma therapy
Transcription and Translation 1. What is the main function of transcription and translation? (2 marks) 2. How is transcription different in eukaryotic and prokaryotic cells? (2 marks) 3. Explain the difference between pre-mRNA and post-transcript mRNA. (2 marks) 4. What is the function of the following: (4 marks) i. the cap ii. spliceosome iii. Poly A tail iv. termination sequence 5. What are advantages to the wobble feature of the genetic code? (2 marks) 6. Explain the difference between the: (3 marks) i. A site & P site ii. codon & anticodon iii. gene expression and gene regulation 7. Explain how the stop codon allows for termination. (1 mark) 8. In your own words, summarize the process of translation. (2 marks)
In this activity you will research performance enhancers that affect the endocrine system or nervous system. You will submit a 1 page paper on one performance enhancer of your choice. Be sure to include: the specific reason for use the alleged results on improving performance how it works how it affect homeostasis and improves performance any side-effects of this substance
Knowledge Booster
Background pattern image
Biology
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, biology and related others by exploring similar questions and additional content below.
Similar questions
SEE MORE QUESTIONS
Recommended textbooks for you
Text book image
Human Anatomy & Physiology (11th Edition)
Biology
ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
Publisher:PEARSON
Text book image
Biology 2e
Biology
ISBN:9781947172517
Author:Matthew Douglas, Jung Choi, Mary Ann Clark
Publisher:OpenStax
Text book image
Anatomy & Physiology
Biology
ISBN:9781259398629
Author:McKinley, Michael P., O'loughlin, Valerie Dean, Bidle, Theresa Stouter
Publisher:Mcgraw Hill Education,
Text book image
Molecular Biology of the Cell (Sixth Edition)
Biology
ISBN:9780815344322
Author:Bruce Alberts, Alexander D. Johnson, Julian Lewis, David Morgan, Martin Raff, Keith Roberts, Peter Walter
Publisher:W. W. Norton & Company
Text book image
Laboratory Manual For Human Anatomy & Physiology
Biology
ISBN:9781260159363
Author:Martin, Terry R., Prentice-craver, Cynthia
Publisher:McGraw-Hill Publishing Co.
Text book image
Inquiry Into Life (16th Edition)
Biology
ISBN:9781260231700
Author:Sylvia S. Mader, Michael Windelspecht
Publisher:McGraw Hill Education
What are Mutations and what are the different types of Mutations?; Author: Science ABC;https://www.youtube.com/watch?v=I16YlE8qTBU;License: Standard youtube license