Exam 4: Extensions of Mendelian Inheritance

Epistasis is ________.

If an allele is dominant in one sex and recessive in another, it is an example of ________.

Temperature-sensitive alleles that kill an organism only in a particular temperature range are examples of ________.

Typically, a recessive allele increases the expression of a functional protein.

The presence of a group of antigens that determine blood type is an example of a(n) ________.

Incomplete penetrance indicates that individuals who possess a dominant trait always express the trait.

In cattle, the presence or absence of scurs follows a sex-influenced pattern of inheritance. A heterozygous male has ________ and a heterozygous female has ________.

Genes that are not required for survival, but are likely to be beneficial to the organism, are called ________.

A heterozygote possesses a phenotype that is intermediate between the homozygous dominant and homozygous recessive phenotypes. This is most likely an example of ________.

Filled in circles and square show affected individuals. Select the mode of inheritance for individual III-3.

In human blood groups, the fact that an individual can have an AB blood type is an example of ________.

A male Manx cat and a female Manx cat produce kitten. What is the probability that kitten has a non-manx tail?

In rabbits, full coat color (c) is the dominant trait. A second allele, chinchilla (cch) is recessive to full coat color. Himalayan coat color (ch) is recessive to chinchilla and full coat colors and albino (c) is recessive to all coat colors. If two chinchilla rabbits mate, what coat color is not possible in their offspring?

The coat characteristics of arctic foxes and Siamese cats, where proteins in the extremities function differently than in other parts of the body, is an example of ________.

An individual carries the allele for polydactyly, but is normal. This is an example of ________.

A paralog ________.

At the molecular level, which of the following best explain heterozygous advantage and overdominance?

Human blood groups are determined by antigens on the surface of red blood cells.

In sex influenced traits, both sexes can express the trait, depending on their genotype, but in sex limited inheritance a particular sex can only have one phenotype for the trait in question.

Phenylketonuria in humans is an example of ________.