#Question id: 636
#Unit 1. Molecules and their Interaction Relevant to Biology
DNA polymerase contains a lysine residue that is important for binding to DNA. Mutations were found that converted this lysine to either glutamate, glycine, valine, or arginine. Which mutations would be predicted to be the most and least harmful to the ability of the enzyme to bind DNA?
Most |
Least |
|
(A) |
Valine |
Aspartate |
(B) |
Glycine |
Arginine |
(C) |
Arginine |
Glycine |
(D) |
Glutamate |
Arginine |
#Question id: 11418
#Unit 10. Ecological Principles
Use the following diagram of five islands formed at around the same time near a particular mainland, as well as MacArthur and Wilson's island equilibrium model principles
Which island would likely have the lowest extinction rate?
#Question id: 3523
#Unit 8. Inheritance Biology
If the number of heterozygous pairs involved in a particular cross is three, the phenotype ratio obtained in their F2 generation will be-
#Question id: 19706
#Unit 13. Methods in Biology
#Question id: 14995
#Unit 4. Cell Communication and Cell Signaling