Biology
Biology
11th Edition
ISBN: 9781259188138
Author: Peter H Raven, George B Johnson Professor, Kenneth A. Mason Dr. Ph.D., Jonathan Losos Dr., Susan Singer
Publisher: McGraw-Hill Education
bartleby

Concept explainers

bartleby

Videos

Textbook Question
Book Icon
Chapter 11, Problem 1U

In comparing somatic cells and gametes, somatic cells are

a. diploid with half the number of chromosomes.

b. haploid with half the number of chromosomes.

c. diploid with twice the number of chromosomes.

d. haploid with twice the number of chromosomes.

Expert Solution & Answer
Check Mark
Summary Introduction

Introduction:

Somatic cells or body cells are diploid cells containing two sets of a chromosome. Somatic cells are formed by the process of mitosis while gametes or germ cells are formed by the process of meiosis. Gametes formation occurs by the fusion of egg and sperm cells during meiosis.

Answer to Problem 1U

Correct answer:

On comparing somatic cells and gametes, somatic cells are diploid with twice the number of chromosomes. Therefore, option c is correct.

Explanation of Solution

Reason for the correct statement:

Somatic cells contain 46 chromosomes and are diploid (consisting of a pair of 23 chromosomes) in nature. On the other hand, the gametes contain only half of the chromosomes (only 23 chromosomes) and thus, each gamete is a haploid.

Option c. is given as “diploid with twice the number of chromosomes.”

As “Somatic cells contain two sets of chromosomes, they are said to be diploid. Gametes contain only one set of chromosomes and they are said to be haploid. Gametes are the sex cells (egg and sperm cells) that undergo meiosis, whereas somatic cells are the body cells that undergo mitosis. Somatic cells are diploid cells with twice the number of chromosomes”. Hence, it is the right answer.

Hence, option c. is correct.

Reasons for the incorrect statements:

Option a. is given as “diploid with half the numbers of chromosomes”.

On comparing the somatic cells with gametes, somatic cells are diploid in nature and contain twice the number of chromosomes. Therefore, it is the wrong answer.

Option b. is given as “haploid with half the number of chromosomes”.

The somatic cells are diploid cells that have twice the number of chromosomes in comparison to gametes. Therefore, it is the wrong answer.

Option d. is given as “haploid with twice the number of the chromosomes”.

On comparing the somatic cells with the gametes, somatic cells have twice the numbers of chromosomes (46chromosomes) and it is diploid in nature. Therefore, it is the wrong answer.

Hence, options a., b. and d. are incorrect.

Conclusion

Conclusion:

Somatic cells contain twice the numbers of chromosomes and are diploid in nature, while gametes are the sex cells and are haploid in nature that contain half the number of chromosomes.

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
Other than oil and alcohol, are there other liquids you could compare to water (that are liquid at room temperature)? How is water unique compared to these other liquids? What follow-up experiment would you like to do, and how would you relate it to your life?
Selection of Traits What adaptations do scavengers have for locating and feeding on prey? What adaptations do predators have for capturing and consuming prey?
Competition Between Species What natural processes limit populations from growing too large?  What are some resources organisms can compete over in their natural habitat?
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 Biology (MindTap Course List)
Biology
ISBN:9781305112100
Author:Cecie Starr, Beverly McMillan
Publisher:Cengage Learning
Text book image
BIOLOGY:CONCEPTS+APPL.(LOOSELEAF)
Biology
ISBN:9781305967359
Author:STARR
Publisher:CENGAGE L
General Embryology Review in 20 minutes; Author: Medical Animations;https://www.youtube.com/watch?v=4YKvVeVMmEE;License: Standard youtube license