Which characteristic improves a protein's ability to resist denaturation when exposed to elevated temperatures?
a. decreased disulfide bonds
b. increased hydrophobicity of the core
c. fewer salt bridges
d. shorter amino acid sequence
Answer: B
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Below is a pedigree of a human genetic disease in which solid color indicates affected individuals. Assume that the disease is caused by a gene that can have the alleles A or a. If individuals 1 and 4 have a child together, what is the probability that the child will exhibit the disease?
A) 0%
B) 25%
C) 50%
D) 75%
E) 100%
Feeding fisheries catch to livestock is an inefficient way of distributing food resources because:
a. higher level predators are being fed to grazers. b. cows cannot digest fish. c. grazers are being fed to predators. d. fish are a poor source of protein. e. the trend is towards increasing human consumption of fish
Most biologists recognize __________ domains
a. 3 b. 4 c. 5 d. 6 e. 12
Environmental factors typically influence inheritance of ________
A) codominance B) dominantly inherited traits C) polygenic traits D) trihybrid crosses E) multiple alleles