#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: 10242
#Unit 10. Ecological Principles
Ecologist Robert Macarthur observed that five species of similar warblers coexisted on spruce trees because they
#Question id: 4693
#Unit 3. Fundamental Processes
The function of snoRNAs in guiding rRNA modification by two types of sequences or boxes
Statement-I C/D box of snoRNAs to guide methylation reactions
Statement-II H/ACA box of snoRNAs to guide dihydrouridylylations
#Question id: 24614
#Unit 2. Cellular Organization
#Question id: 31197
#Unit 4. Cell Communication and Cell Signaling