#Question id: 12783
#Unit 10. Ecological Principles
#Question id: 4732
#Unit 8. Inheritance Biology
What is F2 phenotype ratio observed when a homozygous recessive mutation in either or both of two different genes results in the same mutant phenotype?
#Question id: 5804
#Unit 8. Inheritance Biology
The gene that is mutated in cases of cystic fibrosis encodes an ion transporter protein normally expressed in the respiratory and digestive tracts along with other locations. Individuals homozygous for the most common mutation in this gene (ΔF508) died at very early ages prior to the advent of advanced medical intervention. Despite this, the mutation exists at relatively high frequency in populations of European descent. One potential explanation is that heterozygotes for such mutations may be relatively immune to the lethal effects of diseases such as typhoid fever. Which statement below is most accurate?
#Question id: 12384
#Unit 7. System Physiology – Animal
#Question id: 294
#Unit 1. Molecules and their Interaction Relevant to Biology
Which of the following pairs of amino acids would you predict to only participate in Van der Waals interactions in the three dimensional folding of a protein: