Your dog has puppies. A pair of homologous chromosomes inside a puppy's cell

A. must be genetically identical

B. must have the same alleles in the same locations

C. were both inherited from the same parent

D. will fight with each other to determine which one will be dominant

E. will have the same genes at the same locations

E. will have the same genes at the same locations

Explanation:

Homologous chromosomes are the pairs of chromosomes. The members of a homologous pair are genetically and morphologically similar to each other. One chromosome of a homologous pair is inherited from the father while the other one comes from the mother.

Genes have two or more alleles. The alleles of a gene occupy the corresponding position on the homologous chromosomes. These specific positions of alleles of a gene are called loci. Therefore, a particular locus is occupied by alleles of the same gene on two homologous chromosomes.

The correct answer is E. will have the same genes at the same locations.

Explanation:

Homologous chromosomes are the pair chromosomes one from each parent that have similarities in length, size, gene position, and centromere position. Homologous chromosomes have the same genes at the same location on the chromosome.

One gene can be found in multiple forms called alleles but a homologous chromosome can have a maximum of two alleles of a gene and these alleles can be the same (homozygous) or different (heterozygous) and can be dominant or recessive.

So a pair of homologous chromosomes inside a puppy's cell will have the same gene at the same location but can have different alleles of that gene.