Questions: If a typical somatic cell has 64 chromosomes, how many chromosomes are expected in each gamete of that organism?

The answer is the third one (32): each gamete of that organism is expected to have 32 chromosomes.

Explanation:

• In sexually reproducing organisms, somatic cells are diploid, meaning they contain two sets of chromosomes, one from each parent.
• Gametes (sperm and egg cells), on the other hand, are haploid, meaning they contain only one set of chromosomes. This is because gametes are produced through meiosis, a process that reduces the chromosome number by half.
• If a typical somatic cell has 64 chromosomes, it means it is diploid with 64 chromosomes in total.
• Therefore, each gamete, being haploid, would have half the number of chromosomes found in a somatic cell.
• Half of 64 is 32, so each gamete would have 32 chromosomes.

Summary: Each gamete of the organism is expected to have 32 chromosomes, as gametes are haploid and contain half the number of chromosomes found in diploid somatic cells.