#Question id: 15815
#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.
Which mutations are dominant?
#Question id: 10281
#Unit 6. System Physiology – Plant
Gluconeogenesis is particularly important in plants such as the castor oil plant Ricinus communis and sunflower that store carbon in which form .
#Question id: 4619
#Unit 11. Evolution and Behavior
Within six months of effectively using methicillin to treat S. aureus infections in a community, all new S.aureus infections were caused by MRSA. How can this best be explained?
#Question id: 31228
#Unit 2. Cellular Organization
#Question id: 130
#Unit 1. Molecules and their Interaction Relevant to Biology
An amino acid with two chiral carbon atoms