Two populations of bacteria are grown in a tube separated by a membrane that does not allow phage particles to pass. If recombination takes place between these two populations, the mechanism of genetic exchange is:
a. genetic drift.
b. conjugation.
c. transduction.
Ans: b. conjugation.
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How many NADH molecules are generated in
the breakdown of one molecule of glucose in aerobic respiration?
a. 5 b. 10 c. 15 d. 20 e. 25
Chromosome number for a species is 34. When a cell divides by mitosis, the daughter cells have how many
chromosomes? a. 17 b. 34 c. 51 d. 68 e. 119
Applying human feelings and emotions to animals is
A. anthropomorphism. B. ethology. C. sociobiology. D. redirected aggression.
Human infants have a much larger portion of brown adipose tissue than adult humans. It was found that the mitochondria in brown adipocytes (brown fat cells) have a novel protein in the inner mitochondrial membrane
This protein, called the uncoupling protein (UCP), was found to transport protons from the intermembrane space into the matrix. A. What is the impact of UCP on oxidative phosphorylation in the mitochondria of brown fat? B. Propose an explanation for the higher proportion of brown fat cells in infants compared to adults.