Question:
Identify the CORRECT statement about CLEAVAGE in HUMAN ZYGOTE.
Statement (I): Cleavage is holoblastic.
Statement (II): First cleavage is meridional.
Statement (III): Second cleavage is horizontal.
Statement (IV): Third cleavage is horizontal.
In light of the above statements, choose the most appropriate answer from the options given below.
Identify the CORRECT statement about CLEAVAGE in HUMAN ZYGOTE.
Statement (I): Cleavage is holoblastic.
Statement (II): First cleavage is meridional.
Statement (III): Second cleavage is horizontal.
Statement (IV): Third cleavage is horizontal.
In light of the above statements, choose the most appropriate answer from the options given below.
Statement (I): Cleavage is holoblastic.
Statement (II): First cleavage is meridional.
Statement (III): Second cleavage is horizontal.
Statement (IV): Third cleavage is horizontal.
In light of the above statements, choose the most appropriate answer from the options given below.
Show Hint
Human cleavage is holoblastic and the first division is meridional.
Updated On: Nov 12, 2026
- All statements are correct
- I, II and III are correct
- I, II and IV are correct
- Only I and II are correct
Show Solution
Verified By Collegedunia
The Correct Option is D
Solution and Explanation
Step 1: Understanding the Concept
Human eggs have little yolk, so cleavage divides the whole zygote.
Step 2: Check the statements
I is correct: cleavage is holoblastic.\nII is correct: first cleavage is meridional.\nIII is incorrect: at the second division one blastomere divides meridionally and the other equatorially (rotational cleavage).\nIV is incorrect per the given key.
Step 3: Conclusion
Only I and II are correct.
Final Answer:
Only statements I and II are correct. \[ \boxed{\text{(D) }\text{Only I and II are correct}} \]
Human eggs have little yolk, so cleavage divides the whole zygote.
Step 2: Check the statements
I is correct: cleavage is holoblastic.\nII is correct: first cleavage is meridional.\nIII is incorrect: at the second division one blastomere divides meridionally and the other equatorially (rotational cleavage).\nIV is incorrect per the given key.
Step 3: Conclusion
Only I and II are correct.
Final Answer:
Only statements I and II are correct. \[ \boxed{\text{(D) }\text{Only I and II are correct}} \]
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