Question

in a group of rats, some individuals have a normal - sized body and others have a dwarf body. in this group, the gene for the body size trait has two alleles. the allele b is for a normal - sized body, and the allele b is for a dwarf body. abigail is a rat from this group. abigails phenotype for the body size trait is a normal - sized body. abigails genotype for the body size gene is bb. based on this information, complete the following statement. abigail is for the body size gene. homozygous heterozygous

Explanation:

A heterozygous individual has two different alleles for a gene. Since Abigail's genotype for the body - size gene is Bb (two different alleles B and b), she is heterozygous. A homozygous individual would have two identical alleles (either BB or bb).

Answer:

heterozygous