Biology: The Unity and Diversity of Life (MindTap Course List)
Biology: The Unity and Diversity of Life (MindTap Course List)
14th Edition
ISBN: 9781305073951
Author: Cecie Starr, Ralph Taggart, Christine Evers, Lisa Starr
Publisher: Cengage Learning
bartleby

Videos

Textbook Question
Book Icon
Chapter 42, Problem 1SQ

The end product of cleavage is a __________.

  1. a. gamete
  2. b. blastula
  3. c. gastrula
  4. d. zygote
Expert Solution & Answer
Check Mark
Summary Introduction

Concept Introduction: Cleavage is a process of repeated mitotic divisions where the enormous amount of cytoplasm is distributed to form several small cells. Cleavage is a part of development.

Answer to Problem 1SQ

Correct answer:  The end product of cleavage is a blastula. Therefore, option b. is correct.

Explanation of Solution

Reasons for the correct statement:

The sperm and egg unite to form the zygote. The zygote then undergoes several mitotic divisions repeatedly. These repeated mitotic divisions are collectively called as cleavage. At the end of cleavage the blastula is formed. The blastula has a covering called as blastoderm and the cavity inside called as blastocoel. The blastula is made of cells called as blastomeres. The size of the blastula varies from species to species.

Option b. is given as “blastula”

As blastula is formed at the end of all cleavage divisions, option b. is correct.

Reasons for the incorrect statements:

Option a. is given as “gamete”. The gamete is produced at the end of gametogenesis not cleavage. Therefore, option a. is incorrect.

Option c. is given as “gastrula”. At the end of cleavage, the blastula is formed first and then the gastrula is formed.

Therefore, option c. is incorrect.

Option d. is given as “zygote”. The zygote undergoes cleavage to form the blastula.

Therefore, option d. is incorrect.

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

Conclusion

The end product of cleavage is a blastula. The cleavage is of various patterns based on which the development of the animal is determined.

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
The single most important risk for skin cancer is ________________. a.genetics b.overexposure to UV radiation c.race d.use of farm chemicals
24. Unfertilized egg, thickened the uterine wall and blood discharges in the vagina as _______________ *       a. Ovulation b. Fertilization c. Menstrual cramps d. Menstruation
Match the structures found in the fetal circulation with what each fetal structure becomes after birth: _____ Foramen ovale a. Ligamentum venosum _____ Ductus arteriosus b. Fossa ovalis _____ Ductus venosus c. Ligamentum arterios
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
Cell Differentiation | Genetics | Biology | FuseSchool; Author: FuseSchool - Global Education;https://www.youtube.com/watch?v=gwAz_BtVuLA;License: Standard YouTube License, CC-BY