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

  • Option 1)

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

  • Option 2)

    It has far less cytoplasm as well as less DNA than in an uncleaved zygote

  • Option 3)

    It has more or less equal quantity of cytoplasm and DNA as in uncleaved zygote

  • Option 4)

    It has more cytoplasm and more DNA than an uncleaved zygote

 

Answers (1)

As we discussed in concept

Cleavage -

The mitotic division or cleavage starts as the zygote moves through the isthmus of the oviduct towards the uterus and forms 2, 4, 8, 16 daughter 
cells. The embryo with 8 to 16 blastomeres is called morula.

 

- wherein

Reproducation

 

 

Cleavage divisions are mitiotic division, in which the single-celled zygote is converted into a multicellular morula. But 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 amount of protoplasm.


Option 1)

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

This option is correct.

Option 2)

It has far less cytoplasm as well as less DNA than in an uncleaved zygote

This option is incorrect.

Option 3)

It has more or less equal quantity of cytoplasm and DNA as in uncleaved zygote

This option is incorrect.

Option 4)

It has more cytoplasm and more DNA than an uncleaved zygote

This option is incorrect.

Preparation Products

Rank Booster NEET 2021

This course will help student to be better prepared and study in the right direction for NEET..

₹ 13999/- ₹ 9999/-
Buy Now
Knockout NEET May 2021

An exhaustive E-learning program for the complete preparation of NEET..

₹ 22999/- ₹ 14999/-
Buy Now
Knockout NEET May 2022

An exhaustive E-learning program for the complete preparation of NEET..

₹ 34999/- ₹ 24999/-
Buy Now
Test Series NEET May 2021

Take chapter-wise, subject-wise and Complete syllabus mock tests and get in depth analysis of your test..

₹ 6999/- ₹ 4999/-
Buy Now
Test Series NEET May 2022

Take chapter-wise, subject-wise and Complete syllabus mock tests and get an in-depth analysis of your test..

₹ 6999/-
Buy Now
Exams
Articles
Questions