True or False. In the preparation of a microarray analysis oligonucleotides labeled with fluorescent dyes are fixed to glass slides.

Geneticists calculate the __________ to analyze the effects of mating between relatives.

Which of the following is a mechanism that can compensate for an abnormal number of sex chromosomes in an individual? 1. Each X-linked gene could work half as hard (produce half of the total amount of gene product) in males as it does in females 2. One copy of each X-linked gene could be inactivated in females 3. Each X-linked gene could work twice as hard (produce twice the total amount of gene product) in females as it does in males

RNA polymerase requires a double stranded molecule with a free 3′ hydroxyl to begin transcription.

In the fruit fly, recessive mutations in either of two independently assorting genes, brown and purple, prevent the synthesis of red pigment in the eyes. Thus, homozygotes (recessive) for either of these mutations have brownish-purple eyes. Individuals that are heterozygotes or dominant homozygotes for both of these mutations have dark red, that is, wild-type eyes. If two double heterozygotes are intercrossed, how many of each phenotype would you expect if they had 160 offspring?

True or False. From the pedigree presented in Chapter 7 we saw that NPS1 and ABO blood type loci in humans are located on the same chromosome.

Which of the following is a part of the Y chromosome that is necessary for male development?

DNA migrates toward which pole during gel electrophoresis?

Seed capsule shape in Shepard’s Purse is controlled by two genes where dominant allele at either of these genes will produce the triangular phenotype.

Why is Taq polymerase used more commonly in PCR than DNA polymerase I from E. coli? 1. Taq polymerase remains active during the high heat denaturation step unlike DNA polymerase I 2.Taq polymerase is less expensive than DNA polymerase I 3.Taq polymerase must be added after each deanturation step unlike DNA polymerase I