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Biology: The Unity and Diversity o...
Biology: The Unity and Diversity o...
The end product of cleavage is a __________.
- a. gamete
- b. blastula
- c. gastrula
- d. zygote
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.
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...
Chapter 42 Solutions
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