Question

This scanning electron micrograph depicts chromosomes in what stage?

a.) S phase
b.) G2
c.) Prophase 1
d.) Metaphase 1
e.) Metaphase

Answer 1

The micrograph most likely shows chromosomes in the metaphase stage of mitosis, where they are fully condensed and aligned at the metaphase plate, distinct from other stages like prophase or metaphase I of meiosis.

Step-by-step explanation:

The scanning electron micrograph likely depicts chromosomes in the metaphase stage. In mitosis, chromosomes become visible under a light microscope during prophase, but they are fully condensed and aligned at the metaphase plate during metaphase. This is distinct from metaphase I in meiosis, where homologous chromosomes line up in pairs, or from prophase I, which involves the condensation of chromosomes and the breakdown of the nuclear membrane. Therefore, out of the options provided, the correct stage being depicted is likely metaphase (option e).