Exam 10: Foundations of Genetics

Humans who have lost one copy of a chromosome are called ____________ and generally do not survive development.

Tall is dominant to dwarf in pea plants.If two dwarf pea plants were crossed,their offspring will be:

What discovery by T.H.Morgan finally determined that genes were carried on chromosomes?

Which of the following is a sex-linked disorder?

What is the evolutionary significance of mutation?

The ability to taste PTC is a dominant trait.If a heterozygote woman has a child with a man who is not a taster,what is the chance their child will be a taster?

Down syndrome in humans is due to:

An individual is said to be _____________ if it has two copies of the same factor for a given trait.

When two true-breeding parental genotypes are crossed,the offspring are referred to as the:

Two true-breeding pea plants are crossed,one with purple flowers and the other with white.Their offspring are:

There are 3 alleles that lead to the ABO blood types.How many alleles does an individual inherit from their parents?

Which of the following crosses represents a dihybrid cross?

A ______________ is a long molecule that contains genes and has proteins to help it retain its shape.

The diploid number of chromosomes in pea plants is 14.What is the haploid chromosome number?

Which procedure is the least-invasive method of assessing fetal health while development is still occurring?

Whose work with fruit flies presented the first clear evidence that the genes determining Mendelian traits reside on chromosomes?

Where does transcription take place in the cell?

Hemophilia is a group of different inherited blood-clotting disorders.Which is true about hemophilia?

Nondisjunction of chromosomes resulting in aneuploidy occurs during:

Red-green colorblindness is a sex-linked trait.A woman with normal color vision,whose father was colorblind,mates with a colorblind man.What chance do each of their sons have of being colorblind?