Question

Which of the following is TRUE about the chromosomes found in the body cells of puppies?

Group of answer choices

All chromosomes in the puppies contain genetic information from just one parent.

The number of chromosomes from each parent cannot be predicted.

The female puppies contain more chromosomes from the mom than from the dad.

Half of the chromosomes in the puppies came from the mom and half from the dad.

Answer 1

The correct answer is:

Half of the chromosomes in the puppies came from the mom and half from the dad.

In sexually reproducing organisms, such as puppies, each parent contributes half of the chromosomes to their offspring. This means that half of the chromosomes in the puppies come from the mother and the other half come from the father. This process ensures genetic diversity and the combination of genetic information from both parents in the offspring.

Answer 2

The correct answer to the question about the chromosomes in the body cells of puppies is that half of the chromosomes in the puppies came from the mom and half from the dad.

Step-by-step explanation:

Half of the chromosomes in puppies are inherited from the mother and the other half from the father, making puppies diploid organisms with a balanced genetic contribution from each parent.

This is because most animals, including dogs, are diploid organisms, meaning that each somatic (non-reproductive) cell contains two sets of chromosomes - one set inherited from the mother and one set from the father. The process of sexual reproduction ensures that gametes (sperm and egg), which are haploid and contain half of the chromosome number, fuse during fertilization to restore the full, or diploid, chromosome number in the offspring.

Dogs have 39 pairs of chromosomes, which means that in the body cells of puppies, there are 39 chromosomes from the mother and 39 chromosomes from the father. Female and male gametes contribute equally to the genetic makeup of the puppies, ensuring genetic diversity and proper development. The sorting of chromosomes from each parent into gametes is random, but the outcome is a balanced contribution from both parents.