What would be the expected results for the Meselson and Stahl experiment after 3 generations? Note: Generation zero has all heavy DNA, and all subsequent generations use light nitrogen to make new DNA strands.

When we say that two different genes are linked, this means

Which of the following would not be found in a strand of DNA?

Which of the following events is LEAST likely to occur in a cross involving epistasis by both genes?

With regard to a maternal effect gene, a mother is Dd and a haploid oocyte produced by the mother is d.  Which gene products would be found in this oocyte?

Which of the following is not one of the four criteria that the genetic material must fulfill to function?

A person with trisomy-18 exhibits a collection of physical abnormalities that affect many organs including the brain. These physical abnormalities occur because

Which of the following is not one of the four criteria that the genetic material must fulfill?

DNA is able to store information because of

In linkage studies, a test cross involves a cross between a double heterozygote and an individual that is homozygous recessive for both genes. Recombinant offspring are produced when a crossover occurs