Campbell Biology in Focus (2nd Edition)
Campbell Biology in Focus (2nd Edition)
2nd Edition
ISBN: 9780321962751
Author: Lisa A. Urry, Michael L. Cain, Steven A. Wasserman, Peter V. Minorsky, Jane B. Reece
Publisher: PEARSON
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
Ch.23 How is Salmonella able to cross from the intestines into the blood? A. it is so small that it can squeeze between intestinal cells B. it secretes a toxin that induces its uptake into intestinal epithelial cells C. it secretes enzymes that create perforations in the intestine D. it can get into the blood only if the bacteria are deposited directly there, that is, through a puncture — Which virus is associated with liver cancer? A. hepatitis A B. hepatitis B C. hepatitis C D. both hepatitis B and C — explain your answer thoroughly
Ch.21 What causes patients infected with the yellow fever virus to turn yellow (jaundice)? A. low blood pressure and anemia B. excess leukocytes C. alteration of skin pigments D. liver damage in final stage of disease — What is the advantage for malarial parasites to grow and replicate in red blood cells? A. able to spread quickly B. able to avoid immune detection C. low oxygen environment for growth D. cooler area of the body for growth — Which microbe does not live part of its lifecycle outside humans? A. Toxoplasma gondii B. Cytomegalovirus C. Francisella tularensis D. Plasmodium falciparum — explain your answer thoroughly
Ch.22 Streptococcus pneumoniae has a capsule to protect it from killing by alveolar macrophages, which kill bacteria by… A. cytokines B. antibodies C. complement D. phagocytosis — What fact about the influenza virus allows the dramatic antigenic shift that generates novel strains? A. very large size B. enveloped C. segmented genome D. over 100 genes — explain your answer thoroughly
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
Biology (MindTap Course List)
Biology
ISBN:9781337392938
Author:Eldra Solomon, Charles Martin, Diana W. Martin, Linda R. Berg
Publisher:Cengage Learning
Text book image
Human Heredity: Principles and Issues (MindTap Co...
Biology
ISBN:9781305251052
Author:Michael Cummings
Publisher:Cengage Learning
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
Text book image
Biology: The Dynamic Science (MindTap Course List)
Biology
ISBN:9781305389892
Author:Peter J. Russell, Paul E. Hertz, Beverly McMillan
Publisher:Cengage Learning
Embryology | Fertilization, Cleavage, Blastulation; Author: Ninja Nerd;https://www.youtube.com/watch?v=8-KF0rnhKTU;License: Standard YouTube License, CC-BY