Asked by GURPREET SINGH on Jul 22, 2024
Verified
Which event occurs in prophase II?
A) Disappearance of the spindle
B) Condensation of the chromatin into chromosomes
C) Formation of the chiasmata
D) Crossing over occurs.
E) Formation of the cleavage furrow
Prophase II
A stage of meiosis where chromosomes condense, nuclear envelopes break down, and spindle apparatus forms in each of the two daughter cells from meiosis I.
Chromatin
A complex of DNA and proteins that forms chromosomes within the nucleus of eukaryotic cells, structures that condense to facilitate mitosis and meiosis.
Chiasmata
The points of crossing over and genetic exchange between homologous chromosomes during meiosis.
- Determine the outcomes of meiosis and their role in sexual reproduction.
- Explain the mechanisms of meiosis, encompassing the phenomena of crossing-over and tetrad formation.
Verified Answer
PS
Pinkbeauty sparkleJul 22, 2024
Final Answer :
B
Explanation :
In prophase II of meiosis, the chromatin condenses into visible chromosomes, preparing the cell for the second meiotic division. This is a key step in ensuring that the chromosomes are properly segregated into the daughter cells.
Learning Objectives
- Determine the outcomes of meiosis and their role in sexual reproduction.
- Explain the mechanisms of meiosis, encompassing the phenomena of crossing-over and tetrad formation.