Which of the following is not a feauture of memes:
A. death
B. genetic recombination
C. mutation
D. asexual reproduction
E. sexual reproduction
Answer: B. genetic recombination
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A newly developed antibiotic drug shows promise by inhibiting prokaryotic 70S ribosomes in initial studies. However, when animal studies are begun, it's noted that it also inhibits growth of animal cells
Aren't prokaryotic ribosomes different from eukaryotic ribosomes? How can this be happening? A. Perhaps the ribosomes aren't as different as we thought, so a drug can affect and impair both of them. B. While the proteins made in the cytosol of eukaryotic cells are, indeed, produced from the 80S eukaryotic ribosome, mitochondria and chloroplasts possess 70S ribosomes. This drug might be impairing the activity of chloroplasts in animal cells. C. While the proteins made in the cytosol of eukaryotic cells are, indeed, produced from the 80S eukaryotic ribosome, mitochondria and chloroplasts possess 70S ribosomes. This drug might be impairing the activity of mitochondria in animal cells. D. Perhaps the scientists accidently combined their cultures of animal and bacterial cells-this might indicate an impairment in growth in the culture. In reality, it's still just impairing the bacterial cells.
Which of the following is stimulated by thyroxine?
a. metabolism b. gamete production c. fight-or-flight response d. growth of body tissues
Tawny owls (Strix aluco) pair-bond for life, with both members of a pair living and hunting in adjacent, well-defined
territories. Their reproduction is regulated in accordance with the resources, especially the food supply, present in their territories. Tawny owls can best described as: a. r strategists. b. K strategists. c. fecundists. d. life historists. e. scramblers.
The primary reservoir of anthrax is herbivores.
Answer the following statement true (T) or false (F)