Campbell Biology in Focus, Books a la Carte Edition; Modified Mastering Biology with Pearson eText - ValuePack Access Card - for Campbell Biology in Focus (2nd Edition)
bartleby

Videos

Textbook Question
Book Icon
Chapter 10, Problem 1TYU

A human cell containing 22 autosomes and a Y chromosome is

  1. A.    a sperm.
  2. B.     an egg.
  3. C.     a zygote.
  4. D.    a somatic cell of a male.
Expert Solution & Answer
Check Mark
Summary Introduction

Introduction:

The cell is the basic unit of life. Each cell of human contains 23 pairs of chromosome, in which 22 pairs are autosomes and 1 pair is sex chromosome (XX for females and XY for males). The male gamete is called sperm and a female gamete is called an egg or ovum. These gametes are haploid in nature.

Answer to Problem 1TYU

Correct answer:

A human cell containing 22 autosomes and a Y chromosome is the sperm cell (the reproductive cell present in males). Therefore, option (A) is correct.

Explanation of Solution

Reasons for the correct statement:

There are 2 types of cells found in the human body, one is the somatic cells and the other is the germ cells. The somatic cells make up the entire body, while the germ cells are responsible for reproduction. The sperm cell of a human contains 22 autosomes and either X or Y chromosome.

Option (A) is given as “a sperm”.

“As the sperm contains the sex-determining chromosomes, the total chromosomes present in sperm cell are 22 autosomes and a Y or X chromosome”. Therefore, it is the right answer.

Hence, option (A) is correct.

Reasons for the incorrect statements:

Option (B) is given as “an egg”.

The egg is a germ cell (a gamete) present in females, and it contains only one X-chromosome along with 22 autosomes. Therefore, it is the wrong answer.

Option (C) is given as “a zygote”.

A zygote is the result of fertilization between male and female gametes, which contains 22 pairs of autosomes and 2 sex chromosomes. Therefore, it is the wrong answer.

Option (D) is given as “a somatic cell of a male”.

The somatic cells are diploid in nature. Somatic cells are body cells containing 23 pairs of autosomes. Therefore, it is the wrong answer.

Hence, options (B), (C), and (D) are incorrect.

Conclusion

Sperms are the reproductive cells present in males. The human sperm cell contains 22 autosomes and a Y chromosome.

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
A human cell containing 22 autosomes anda Y chromosome is(A) a sperm.(B) an egg.(C) a zygote.(D) a somatic cell of a male
Assume that a particular human cell is examined under a microscope, and it contains 22 autosomes and a Y chromosome. This cell is most likely to be:   A. a gamete of a female   B. a zygote   C. a sperm cell.   D. a polyploid cell   E. a somatic cell of a male
In which type of human cell would you expect to find a Barr body? A.)A sperm cell B.)A somatic cell in an XY male C.)An ovum D.) A somatic cell in an XX female
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
    Concepts of Biology
    Biology
    ISBN:9781938168116
    Author:Samantha Fowler, Rebecca Roush, James Wise
    Publisher:OpenStax College
Text book image
Concepts of Biology
Biology
ISBN:9781938168116
Author:Samantha Fowler, Rebecca Roush, James Wise
Publisher:OpenStax College
Embryology | Fertilization, Cleavage, Blastulation; Author: Ninja Nerd;https://www.youtube.com/watch?v=8-KF0rnhKTU;License: Standard YouTube License, CC-BY