#Question id: 15818
#Unit 8. Inheritance Biology
You and your lab partner have isolated 20 new mutant yeast strains that are defective in synthesis of threonine, an amino acid. These Thr- mutants do not grow on minimal medium, but they do grow on minimal medium supplemented with threonine. Ten of your Thr- mutants (numbered 1 through 10) were isolated in a strain of mating type a (MAT a). The other 10 Thrmutants (numbered 11 through 20) were isolated in a strain of mating type α (MAT α). You and your lab partner cross each of the MAT a strains to each of the MAT α strains, and you include crosses to the appropriate wild-type strains. Your experimental observations are shown in the table below, where (-) indicates diploids that did not grow on minimal medium and (+) indicates diploids that did grow on minimal medium.
What is the maximum number of genes that these 20 mutants could represent?
#Question id: 3401
#Unit 11. Evolution and Behavior
Genotypes of leopard frogs from a population in central Kansas were determined for a locus that encodes the enzyme malate dehydrogenase. The following numbers of genotypes were observed: What would be the expected numbers of genotypes if the population were in Hardy-Weinberg equilibrium?
#Question id: 2036
#Unit 4. Cell Communication and Cell Signaling
Certain microorganism such as Salmonella, Listeria, Neisseria, Cryptococcus consist of specific carbohydrate moieties on the surface antigen that activate
#Question id: 28653
#Unit 2. Cellular Organization
Which of the ubiquitin-protein ligases to allow loading of replicative helicases on DNA replication origin by degradation of geminin in metazoans?
#Question id: 3578
#Unit 8. Inheritance Biology
A locus is: