Question

alleles interact with each other in various ways to produce observable traits in an organism. in some cases, one allele overpowers another, while in other cases, both alleles are partially or completely expressed.
homologous chromosomes
chromosome from father
chromosome from mother
allele for type b blood
allele for type a blood
1 2 3 4 5 6 7 8
9 10 11 12 13 14 15 16
17 18 19 20 21 22 23
for example, if an individual inherits the allele for blood type a on chromosome 9 from their mother, and the allele for blood type b on chromosome 9 from their father, they will have type ab blood.
which statement best describes how an individual’s alleles affect their traits?
for each gene, alleles interact to affect an individual’s traits.
only alleles inherited from an individual’s mother affect their traits.
for each gene, one allele is chosen at random to affect an individual’s traits.
only alleles inherited from an individual’s father affect their traits.

Explanation:

The text and example show alleles (like A and B blood type alleles) work together to produce traits (AB blood type). The other options are incorrect: traits are influenced by both maternal and paternal alleles, not just one parent's, and alleles do not act randomly but interact to determine traits.

Answer:

For each gene, alleles interact to affect an individual's traits.