Question

prophase ii
how is prophase ii different than prophase i?
a. tetrads do not form in prophase ii.
b. the nucleus does not go away in prophase ii.
c. there are no chromosomes during prophase ii
d. all of the above.

Explanation:

• In Prophase I of meiosis, homologous chromosomes pair up to form tetrads (a process called synapsis). In Prophase II, there are no homologous chromosomes to pair up as the homologous chromosomes have already separated in Meiosis I. So, tetrads do not form in Prophase II.
• In both Prophase I and Prophase II, the nuclear envelope breaks down (the nucleus “goes away”).
• There are chromosomes present in Prophase II. They are just not in homologous pairs.

Answer:

A. Tetrads do NOT form in Prophase II.