Question

Which one of the following statements about in humans is correct?

• A. It has almost equal quantity of cytoplasm as an uncleaved zygote but much more DNA.
• B. It has far less cytoplasm as well as less DNA than in an uncleaved zygote.
• C. It has more or less equal quantity of cytoplasm and DNA as in uncleaved zygote.
• D. It has more cytoplasm and more DNA than an uncleaved zygote.

Answer 1

Answer: (A)

It has almost equal quantity of cytoplasm as an uncleaved zygote but much more DNA.

Mitotic division in which the single-celled zygote is converted into a multicellular morula is known as cleavage division. It is observed that during cleavage divisions, there is no growth of resultant daughter cells blastomeres. So, the DNA content will increase, but there is no increase or insignificant increase in the amount of protoplasm.

So the correct option is 'It has more cytoplasm and more DNA than an uncleaved zygote.'