Question
An organism’s genotype is (1 point)
Responses
an allele that is expressed whenever it is present.
an allele that is expressed whenever it is present.
the set of alleles an organism has for a trait.
the set of alleles an organism has for a trait.
an observable trait.
an observable trait.
a trait that is expressed in a homozygous individual.
the set of alleles an organism has for a trait.
The correct answer is: the set of alleles an organism has for a trait.
The correct answer is: the set of alleles an organism has for a trait.
To understand why this is the correct answer, let's break down the options:
1. An allele that is expressed whenever it is present - This is not correct because an organism's genotype is not just limited to a single allele, but a combination of alleles for a specific trait.
2. The set of alleles an organism has for a trait - This is the correct answer. Genotype refers to the genetic makeup of an organism, specifically the collection of alleles that an organism possesses.
3. An observable trait - This refers to the phenotype, not the genotype. Phenotype is the physical expression of the genotype.
4. A trait that is expressed in a homozygous individual - Homozygous individuals have two identical alleles for a specific trait, but genotype encompasses both homozygous and heterozygous combinations of alleles.
So, the correct answer is that an organism's genotype is the set of alleles it has for a trait.