Which of the following represents a recessive homozygous individual:

Question

Quizplus · Accepted Answer

Genes are segments of DNA that contain the codes for specific functions in the body. An example of a gene is the piece of DNA that determines a person's eye color.
Genes come in multiple variations. Each variation of a gene is called an allele. For example, the gene that determine's a person's eye color has two alleles: brown eyes and blue eyes.
In genetic crosses, a letter is used to represent the alleles of a particular gene. A capital letter represents the dominant allele and a lowercase letter represents the recessive allele.
If both of the alleles are the same type, the organism is said to be homozygous. If the alleles are different types, the organism is said to be heterozygous.
AA = dominant homozygous
Aa = heterozygous
aa = recessive homozygous
aA would be an incorrect way of representing a heterozygous individual because we always put the dominant allele (capital letter) first.

Which of the Following Represents a Recessive Homozygous Individual