Question

Which pairs of individuals could be full biological siblings? check all that apply. (germ-line or somatic mutations in the number of ssr repeats are rare, so assume that no such mutations occurred.)

Answer 1

Full biological siblings share both biological parents and have a mix of alleles from each parent. Identical twins are an exception as they are genetically identical. Adoptive siblings and similarly aged unrelated children raised together may have a close bond but do not share the same genetic makeup.

Step-by-step explanation:

Full biological siblings are individuals who share both biological parents. They inherit one chromosome from each parent, which means they receive a mix of alleles from both parents. Their genetic composition contains some genes in common, but they also have genetic variations. Identical twins are an exception because they are genetically identical.

For example, if we consider a brother and sister, they share approximately 50% of their genes because they have the same biological parents. On the other hand, adoptive siblings and similarly aged unrelated children raised together may have a close bond but do not share the same genetic makeup.

Based on this information, the pairs of individuals that could be full biological siblings are adoptive parent-child pairs, half-siblings, and similarly aged unrelated children raised together.