Exam 25: Quantitative Genetics and Multifactorial Traits

Assume that in the F₂ of a series of crosses,1/64 of the offspring resemble one of the parents P .How many gene pairs are involved in producing these results?

Heritability is a measure of the degree to which the phenotypic variation of a given trait is due to ___.

Interpret the meaning of an H² broad- sense heritability value that approaches 0.0.

Which trait is probably not caused primarily by genes that behave codominantly or epistatically?

What is the term given to a random subset of individuals who are selected for measurement in a particular study?

Given the following numbers,calculate the mean: 10,12,14,16,18.

Meristic traits are characterized by having phenotypes that are described by _____ .

Assume that you are studying a trait determined by a number of polygenes.If there are seven phenotypic categories,how many genes are probably involved?

How many gene pairs are involved in generating a typical 1:4:6:4:1 ratio?

Which of the following is not a statistical value often used to represent a sample when evaluating QTLs?

Which of the following is not a component of phenotypic variance?

Which of the following mammalian traits exhibits a relatively low h² value?