An organism’s genotype is (1 point) Responses 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. an allele that is expressed whenever it is present. an allele that is expressed whenever it is present. a trait that is expressed in a homozygous individual.
The correct answer is: the set of alleles an organism has for a trait.
An organism's genotype 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 determine the answer, we need to understand the meaning of the term "genotype." The genotype refers to the genetic makeup of an organism, specifically the specific combination of alleles it possesses for a particular trait.
To arrive at this answer, we can break down the options:
1. The set of alleles an organism has for a trait. This option correctly defines the concept of genotype.
2. An observable trait. This option represents the phenotype, which is the physical expression of the genotype.
3. An allele that is expressed whenever it is present. This option describes a dominant allele, which is expressed in the phenotype even when only one copy is present. It does not define genotype.
4. A trait that is expressed in a homozygous individual. This option describes the concept of a homozygous trait, where an organism has identical alleles for a particular trait. Again, this does not encompass the full meaning of genotype.
As such, the correct answer is the first option: the set of alleles an organism has for a trait.