Some proteins have a slower rate of mutation due to ____ selection, which eliminates harmful alleles
Fill in the blank with the appropriate word.
negative
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The building of a large organic molecule from small subunits involves multiple ________.
A. hydrosynthetic reactions B. hydrolysis reactions C. osmotic reactions D. dehydration synthesis reactions
During the treatment of a bacterial infection with antibiotic, the yeast Candida can grow out of control and cause a vaginal or intestinal infection. What is the best explanation for fungal infection?
A. There are fewer bacteria present to compete with the yeast. B. Antibiotics are often contaminated with Candida yeast. C. The antibiotic weakens the immune system. D. Bacteria normally digest yeast cells. E. The antibiotic causes mutations in the yeast that give the yeast resistance.
Refuse
What will be an ideal response?
Among these choices, the largest cell involved in frog reproduction is _____
A) an egg B) a blastomere in the vegetal pole C) a blastomere in the animal pole D) one of the products of the first cleavage