Question

you discover a new species of snail, biologicia terificia, and find that it contains 6 chromosomes in g1 phase. how many chromosomes are in a body cell of the snail in g2 phase?

Explanation:

Step1: Understand cell - cycle phases

In the cell - cycle, G1 phase is the first gap phase. G2 phase is the second gap phase after DNA replication occurs during the S phase.

Step2: Recall DNA replication and chromosome number

DNA replication in the S phase doubles the amount of DNA but not the number of chromosomes. A body cell (somatic cell) in G1 has a certain number of chromosomes, and after DNA replication in S phase and entering G2, the chromosome number remains the same.

Answer:

6