Question

What does an organism's genotype describe?
A) The allele combination for a trait
B) The physical appearance of a trait
C) The number of alleles on a gene
D) The number of different traits inherited

Answer 1

An organism's genotype describes the allele combination for a trait (Ee, etc.). Phenotype is the physical appearance of a trait (Eye color, etc).

Answer 2

Answer:

The correct answer would be option A.

The genotype refers to the combination of alleles present in an organism for a particular trait.

When both the alleles are the same for the trait then the organism is said to homozygous for that gene. For example, TT refers to the homozygous dominant genotype and tt refers to the homozygous recessive condition.

In contrast, when an organism has different alleles for a particular trait then the organism is said to heterozygous for the trait. For example, Tt refers to the heterozygous genotype.