Question

the chromosomes in a homologous pair contain the same genes in the same locations. but one chromosome might have a different version of a gene than the other chromosome. different versions of the same gene are known as alleles.
scientists have assigned a number to each homologous pair of chromosomes that make up a humans dna. they use this numbering system to describe where specific genes are found on particular chromosomes. for example, the gene for abo blood type in humans is found on chromosome 9. this gene has a specific location, called a locus, on the chromosome, but the allele can vary. so an individual could inherit the allele for blood type a from their mother, and the allele for blood type b from their father.
complete the paragraph.
each chromosome in a homologous pair is inherited from
. any two homologous chromosomes contain the same
, but may have different
.

Explanation:

The text and diagram confirm that one homologous chromosome comes from the mother, the other from the father. Homologous pairs share the same genes at matching loci, but can carry different versions of those genes (alleles), as shown with the ABO blood type example.

Answer:

Each chromosome in a homologous pair is inherited from one parent (mother or father). Any two homologous chromosomes contain the same genes (in the same locations), but may have different alleles.