Question

which is a homologous chromosome pair?
chromatid
zygote
gamete
tetrad

Explanation:

A tetrad is formed during meiosis when a pair of homologous chromosomes (one from each parent) come together. A chromatid is one - half of a replicated chromosome. A zygote is a fertilized egg cell. A gamete is a sex cell. None of the other options represent a homologous chromosome pair.

Answer:

tetrad