wiz-icon
MyQuestionIcon
MyQuestionIcon
1
You visited us 1 times! Enjoying our articles? Unlock Full Access!
Question

Assertion: In angiosperms, each of the cells of an embryo-sac is haploid.
Reason: The embryo sac formation is preceded by meiosis.

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

The correct option is A Both A and R are correct and R is the correct explanation of A.
In angiosperms, during the process of megasporogenesis, the diploid megaspore divides by meiosis to form four haploid megaspores. Out of these, three normally degenerate and only one megaspore remains.

This functional megaspore will undergo repeated mitosis to give rise to an 8 celled 8 nucleated embryosac. This is the female gametophyte in angiosperms as it contains the single egg cell.

flag
Suggest Corrections
thumbs-up
0
Join BYJU'S Learning Program
similar_icon
Related Videos
thumbnail
lock
Double Fertilisation
BIOLOGY
Watch in App
Join BYJU'S Learning Program
CrossIcon