Choose the correct answers from the alternatives given.
Which of the following stages is the first one out of sequence?

Cleavage

Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses

Blastula

No worries! We‘ve got your back. Try BYJU‘S free classes today!

Morula

No worries! We‘ve got your back. Try BYJU‘S free classes today!

Gastrula

No worries! We‘ve got your back. Try BYJU‘S free classes today!

Open in App

Solution

The correct option is A Cleavage
The mitotic division starts as the zygote moves through the isthmus of the oviduct called cleavage towards the uterus and forms 2, 4, 8 16 daughter cells called blastomeres. The embryo at 8-16 celled stage is called a morula. Thus the division starts at the cleavage.
So the correct option is 'Cleavage'.

Suggest Corrections