wiz-icon
MyQuestionIcon
MyQuestionIcon
4
You visited us 4 times! Enjoying our articles? Unlock Full Access!
Question

Assertion : In morula stage, cells divide without increase in size.
Reason : Zona pellucida remain undivided till cleavage is complete.

A
Both Assertion and Reason are true and Reason is a correct explanation of Assertion
No worries! We‘ve got your back. Try BYJU‘S free classes today!
B
Both Assertion and Reason are true but Reason is not a correct explanation of Assertion
Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses
C
Assertion is true but Reason is false
No worries! We‘ve got your back. Try BYJU‘S free classes today!
D
Both Assertion and Reason are false
No worries! We‘ve got your back. Try BYJU‘S free classes today!
E
Assertion is false but reason is true.
No worries! We‘ve got your back. Try BYJU‘S free classes today!
Open in App
Solution

The correct option is B Both Assertion and Reason are true but Reason is not a correct explanation of Assertion
Zygote divide vertically to form two blastomeres. This is followed by a vertical division and a horizontal division. Now, several divisions occur forming equal sized blastomeres called morula. There is no increase in size of cells. Zona pellucida is a transparent non cellular layer surrounding egg cell. It remains undivided till the cleavage is complete.

flag
Suggest Corrections
thumbs-up
0
similar_icon
Similar questions
View More
Join BYJU'S Learning Program
similar_icon
Related Videos
thumbnail
lock
Phylum Porifera
BIOLOGY
Watch in App
Join BYJU'S Learning Program
CrossIcon