Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
12 Cards in this Set
- Front
- Back
|
Locus |
Position of a gene/allele on a chromosom |
|
|
Allele |
Alternative forms of the same gene, and responsible for contrasting characteristics of a gene |
|
|
Dominant allele |
Influences the phenotype even in the presence of an alternative allele, encodes functional protein |
|
|
Recessive allele |
Influences the phenotype only in the presence of another identical recessive allele/homozygous recessive, encodes non-functional protein |
|
|
Homozygous |
Both alleles at a given locus are identical in diploid condition |
|
|
Heterozygous |
Different alleles are present in diploid condition |
|
|
Co-dominant |
Both alleles are equally expressed in the phenotype of the heterozygote |
|
|
Incomplete dominance |
The heterozygote exhibits a phenotype that is intermediate between the 2 homozygous forms |
|
|
Linked genes |
Genes coding for _ and _ are found on the same chromosome, do not show independent assortment, usually inherited together |
|
|
Dominant epistasis |
When a dominant allele at one locus produces a certain phenotype regardless of the allelic condition of the other locus |
|
|
Recessive epistasis |
Homozygous recessive genotype at one locus suppresses the expression of alleles at another locus |
|
|
Duplicate recessive epistasis |
Identical phenotypes are produced by both homozygous recessive genotypes |
