Question

Which cleavage pattern is followed by the mammalian zygote?

Answer 1

radial and indeterminate cleavage

Answer 2

Mammalian zygote undergoes holoblastic rotational cleavage.

EXPLANATION:

Mammalian zygotes undergo a series of 'cleavage cell cycles' with no cell growth at all thereby producing a "cluster of cells" of same size as the zygote.  

The cells derived from a cleavage form large number of cells called morula. These cells are called blastomeres. The cleavage ends with formation of blastula. Cleavage is a process of 'cell division' in early embryos. This process is then followed by fertilization.