Answer:
a. gene and chromosome: Genes are found in chromosomes.
b. gene and DNA: Genes are segments of DNA.
c. gene and allele: Alleles are a variant form of a gene.
d. allele and meiosis: During meiosis, gametes are formed. Each gamete contains a single allele of each gene. Alleles are found during meiosis.s
I hope this helped you, even though it probably didn't right now lol.