inheritance Flashcards
1
Q
genotype
A
the genetic constitution of an organism
2
Q
phenotype
A
the expression of the genetic constitution
and its interaction with the environment
3
Q
homozygous
A
two copies of the same allele for a gene
4
Q
heterozygous
A
two different alleles for the same gene.
5
Q
recessive allele
A
An allele that is only expressed if there are no dominant alleles present
6
Q
dominant allele
A
An allele that is always expressed in the phenotype
7
Q
codominance
A
two alleles are both dominant both are expressed in the phenotype
8
Q
sex-linkage
A
a gene located on the X chromosome
in the non-homologous region
9
Q
autosomal linkage
A
genes located on the same chromosome (not the X or Y chromosome)
10
Q
epistasis
A
When one gene masks/modifies
with the expression of another
gene
