What is true for cleavage?
Correct answer: B. Size of cells decreases
- A. Size of embryo increases
- B. Size of cells decreases
- C. Size of cells increases
- D. Size of embryo decreases
Explanation
During cleavage, the zygote undergoes rapid cell divisions without a significant increase in overall size. As the zygote divides into smaller and smaller cells called blastomeres, the size of each individual cell decreases. This process allows the embryo to divide and organize its cells efficiently while maintaining a relatively constant overall size.
Last updated
About Reproduction
Human reproduction covers the male and female reproductive organs, gamete formation, fertilization, implantation and hormonal regulation. The menstrual cycle includes ovarian and uterine changes controlled by pituitary and ovarian hormones, while sexually transmitted diseases are studied through their causes, transmission, symptoms, prevention and effects on fertility.
Practise Reproduction
1,220 free Reproduction MCQs from Biology, each with the correct answer and an explanation. Unlimited attempts, no account needed.
Exams that ask Biology questions like this
Biology is on 6 papers prepared for on TestUstad, and all of them draw the same bank, so this question is worth knowing for every one of them.
Related questions
2nd meiotic division in the oocyte is completed during the?
50 secondary oocytes in females and 50 secondary spermatocytes in males give rise to:
50 secondary spermatocytes and 50 secondary oocytes will give rise to
A carpel is a leaf which has been modified to produce:
A change in the amount of yolk and its distribution in the egg will affect: