Question

how does the process of meiosis affect the genetic information that offspring receive?
a. it prevents mutations from being passed onto the offspring.
b. it creates identical copies of the parents dna for the offspring.
c. it allows the offspring to receive the most advantageous genes.
d. it ensures offspring receive the correct number of chromosomes.

Explanation:

• Option A: Meiosis does not prevent mutations. Mutations can still occur during meiosis (e.g., during DNA replication).
• Option B: Meiosis creates gametes (sex - cells) with half the number of chromosomes of the parent cell. When fertilization occurs, the offspring gets a combination of genetic material from both parents, not identical copies of either parent's DNA.
• Option C: Meiosis is a random process of genetic recombination (crossing - over and independent assortment). It does not specifically select for the most advantageous genes. Natural selection acts on the phenotype of the organism in the environment to favor advantageous genes over time.
• Option D: Meiosis reduces the chromosome number by half in gametes. When sperm (n) and egg (n) fuse during fertilization, the zygote has the diploid (2n) number of chromosomes, which is the correct number for the species.

Answer:

D. It ensures offspring receive the correct number of chromosomes.