Genes that control coat color in mammals represent some of the best early examples of genes with multiple alleles exhibiting different phenotypes. A classic example is the C gene in hamsters. Three of the known alleles of this gene are C, c^a and c^k. Each supplies a different amount of black pigment to the coat hair. The phenotypes of three different homozygous strains are as follows.

would mate the true-breeding  c^a c^a  hamsters to the true-breeding c^k c^k  hamsters to produce heterozygous  c^a and c^k  F1 progeny. Crosses and their interpretation that would have allowed geneticists to come to the conclusion that c^a and c^k were likely to be alleles of the same using the concept that alleles of the same gene will be tightly linked. What will be the ratio of F2 hamster;

#Question id: 5307

#Unit 11. Evolution and Behavior

Which of the following techniques would be most appropriate to test the hypothesis that humans and chimps differ in the expression of a large set of shared genes?

#Question id: 5306

#Unit 11. Evolution and Behavior

 If the sequence of a cDNA has matches with DNA sequences in the genome, then this genomic DNA could be described by which of the following statements?

#Question id: 5305

#Unit 11. Evolution and Behavior

After finding a new medicinal plant, a pharmaceutical company decides to determine if the plant has genes similar to those of other known medicinal plants. What would annotation of the genome of this plant allow the company to determine?

#Question id: 5304

#Unit 11. Evolution and Behavior

Bioinformatics includes ________.

I. using computer programs to align DNA sequences

II. creating recombinant DNA from separate species

III. developing computer-based tools for genome analysis

IV. using mathematical tools to make sense of biological systems

#Question id: 5302

#Unit 11. Evolution and Behavior

Using modern techniques of sequencing by synthesis and the shotgun approach, sequences are assembled into chromosomes by ________.

#Question id: 5232

#Unit 11. Evolution and Behavior

Using molecular clock, it was estimated that two species X and Y must have diverged from their common ancestor about 5 x 10^6 years ago. If the rate of divergence per base pair is estimated to be 0.06 per million years, what is the proportion of base pairs that differ between the two species now?