Question

alleles are: question 30 options: different versions of a particular gene. different types of deoxyribonucleic acid (dna). defective chromosomes that are missing a few key genes. chemicals or other environmental agents that are known to cause birth defects.

Answer 1

Step-by-step explanation:

alleles is one of two or more versions of DNA sequence (a single base or a segment of bases) at a given genomic location.