Question

in which phase of meiosis do tetrads align in the center of the cell?
a metaphase i
b anaphase ii
c metaphase i and ii
d anaphase i and ii

Explanation:

• Metaphase I: In meiosis, during Metaphase I, tetrads (pairs of homologous chromosomes) align at the center (equatorial plane) of the cell. This is a key event in Meiosis I as it sets the stage for the separation of homologous chromosomes.
• Anaphase I and II: In Anaphase I, homologous chromosomes separate and move to opposite poles. In Anaphase II, sister chromatids separate. There is no alignment of tetrads in these phases.
• Metaphase II: In Metaphase II, individual chromosomes (not tetrads) align at the cell's equator.

Answer:

A. Metaphase I