Question

In leptotene, the chromosomes are

• A. Attached to nuclear envelope by one end
• B. Attached to nuclear envelope by both en directly
• C. Attached to nuclear envelope by both end through attachment plate
• D. Both B and C

Answer 1

The correct option is A Attached to nuclear envelope by one end

In leptotene, the ends of the chromosome are attached to the nuclear envelop at the attachment plate so that chromosomes can come together and synapsis can occur in the nucleus.

So, the correct option is A.