The point in a eukaryotic cell cycle at which DNA condenses to from visible chromosome?

Prophase

Explanation:

There are different stages in the eukaryotic cell cycle. Different cellular occurrences are found in each of this stages. The stages include; prophase, metaphase, anaphase, telophase etc.

Prophase, which is the first division stage, is characterized by the dissociation of the nuclear membrane, tightening of DNA coils called chromatin by condensin proteins (condensation) to form X shaped visible chromosomes.

answer: a. a gene that causes a specific trait.

answer; a male inherits only one allele of the x-linked gene controlling hair color;