What is the difference between NAD+ and NADH?
A.) NADH is involved in biosynthetic reactions
B.) NADH carries an extra proton and two high energy electrons
C.) NADH carries an extra phophate group
D.) NADH is an electron acceptor, whereas NAD+ is an electron donor
E.) NADH is the oxidized form, while NAD+ is the reduced form
Ans: B.) NADH carries an extra proton and two high energy electrons
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Why are dNTPs used as precursors for the DNA polymerase reaction rather than dNDPs?
What will be an ideal response?
In the above figure which of the following is true?
a. Enough change in the dark blue phenotype is seen to suggest that the population is evolving. b. The light color phenotype is being selected for by songbird predation. c. Differential reproductive rate is having an effect on evolution. d. There is no evidence to support observable evolution within this population. e. All of these are true.
Speciation by polyploidy, which is common in plants, can cause a new species to form in one generation. This is because.
A. The doubling of chromosomes leads to embryo death B. The increased number of chromosomes allows them to produce more offspring C. The reduction of chromosomes means they are smaller and can disperse more easily D. The new individuals with increased chromosomes can no longer produce viable offspring with the parent populations
Below are the hypothetical between-host phylogenies of two different genes from the same virus strain. The products of both genes are localized on the surface of the virus particle
If you were charged with developing a vaccine against this virus, which gene would you target? a. Gene A, as it does not appear to be under positive selection by the immune system. b. Gene A, as it appears to be under positive selection by the immune system. c. Gene B, as it does not appear to be under positive selection by the immune system. d. Gene B, as it appears to be under positive selection by the immune system.