Which one of the following statements with regard to embryonic development in humans is correct? |
|
a) |
Cleavage divisions 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 |
Which one of the following statements with regard to embryonic development in humans is correct? |
|
a) |
Cleavage divisions 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 |
(b)
During embryonic development of human, in the second cleavage division, one of the two blastomeres usually divides a little sooner then the second. Cleavage is series of mitotic cell divisions that increase the number of cells but does not change the size of the original mass.