A researcher is looking at different petri dishes containing the yeast C. albicans. In the first dish she evaluates, she notices that the yeast does not form hyphae. Is this a mutant strain of yeast?
A. Yes, as the lack of hyphae denotes
pathogenic yeast.
B. Yes, as yeast typically forms hyphae.
C. No, as yeast does not normally form
hyphae.
D. No, as yeast always forms rhizoids and not
hyphae.
C
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In some societies, the birth of a deformed child is regarded as a sign of impending war or famine
a. True b. False
Monogamous mating systems are most common when resources are _______ and offspring require _______ amounts of parental care from both parents.
Fill in the blank(s) with the appropriate word(s).
Which of the following cells engulf antigens and present fragments of them on their own surfaces for recognition?
a. plasma cells b. T lymphocytes c. NK cells d. dendritic cells
Receptors for peptide hormones lie
A. in the cytoplasm. B. in the nucleus of the cell. C. within the cell membrane. D. in association with ribosomes in the cytoplasm.