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

Similar Questions

During the development of embryo which of the following occur first

$A$ : Placenta is connected to the embryo through an umbilical cord which helps in the transport of substance to and from the embryo
$R$ : Placenta acts as an endocrine tissue

Which one of the following is not the function of placenta?

  • [NEET 2013]

By the end of about .......... weeks, the body is covered with fine hair.

Hormones secreted by the placenta to maintain pregnancy are

  • [NEET 2018]