Class IV - Dom/Rec

Front

A cross involving four phenotypic categories has how many degrees of freedom on a chi-squared test?

Back

3

Front

A prevalent or baseline phenotype in a population is:

Back

wild-type

Front

A dominant allele leads to a specific phenotype, but only 50% of individuals with this allele actually have the trait that is typically caused by this mutation. This is an example of:

Back

Penetrance

Front

A tall plant and a short plant are crossed and produce medium-height progeny. This is an example of:

Back

incomplete dominance

Front

There is an allele of a gene with a loss of function mutation. Heterozygote individuals have a phenotype. What is this?

Back

haploinsufficiency

Front

Chi-squared value of 7.9 from a cross involving 4 phenotypes. Is this sufficient to reject the null hypothesis at a p-value cutoff of 0.01?

Back

No

Front

Creating a loss-of-function allele in the lab is referred to as:

Back

knockout

Front

A mutation in a potassium channel now allows potassium ions to flow into and out of a cell without regulation. This mutation could be considered:

Back

gain of function

Front

Polydactyly sometimes results in the addition of 1, 2, 3 or more digits. This is an example of?

Back

Expressivity

Front

A mutation disrupts the binding interactions forming a homodimer, leading to a non-functioning protein complex. This mutation could be considered:

Back

dominant negative