Which one of the following statements with regard to embryonic development in humans is correct
Which one of the following statements with regard to embryonic development in humans is correct
- [AIIMS 2003]
- A
Cleavage division bring about considerable increase in the mass of protoplasm
- B
In the second cleavage division, one of the two blastomeres usually divides a little sooner than the second
- C
With more cleavage divisions, the resultant blastomeres become larger and larger
- D
Cleavage division results in a hollow ball of cells called morula
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Implantation is the process of
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Fertilisation of an egg cell it means......
$(1)$ End of process of oogenesis
$(2)$ Induces the completion of the second meiotic division
$(3)$ The corpus luteum degenerates
$(4)$ Signals for maintain progesterone level in blood
$(5)$ Formation of zygote
Fertilisation of an egg cell it means......
$(1)$ End of process of oogenesis
$(2)$ Induces the completion of the second meiotic division
$(3)$ The corpus luteum degenerates
$(4)$ Signals for maintain progesterone level in blood
$(5)$ Formation of zygote
In sexually reproducing animals the union of male and female gamete forms a cell which is called
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The point of sperm entry during fertilization forms
The point of sperm entry during fertilization forms
The outer layer of the blastocyst which forms the ectoderm is called
The outer layer of the blastocyst which forms the ectoderm is called