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.

Most Viewed Questions

Preparation Products

Knockout NEET 2024

Personalized AI Tutor and Adaptive Time Table, Self Study Material, Unlimited Mock Tests and Personalized Analysis Reports, 24x7 Doubt Chat Support,.

₹ 40000/-
Buy Now
Knockout NEET 2025

Personalized AI Tutor and Adaptive Time Table, Self Study Material, Unlimited Mock Tests and Personalized Analysis Reports, 24x7 Doubt Chat Support,.

₹ 45000/-
Buy Now
Knockout NEET 2021 (One Month)

Personalized AI Tutor and Adaptive Time Table, Self Study Material, Weekend Live Classes, Unlimited Mock Tests and Personalized Analysis Reports, 24x7 Doubt Chat Support,.

₹ 14000/- ₹ 4999/-
Buy Now
Knockout NEET 2021

Personalized AI Tutor and Adaptive Time Table, Self Study Material, Weekend Live Classes, Unlimited Mock Tests and Personalized Analysis Reports, 24x7 Doubt Chat Support,.

₹ 22999/- ₹ 9999/-
Buy Now
Test Series NEET 2021

Chapter/Subject/Full Mock Tests for NEET, Personalized Performance Report, Weakness Sheet, Complete Answer Key,.

₹ 6999/- ₹ 2999/-
Buy Now
Boost your Preparation for NEET 2021 with Personlized Coaching
 
Exams
Articles
Questions