Thrush in a newborn's oral cavity becomes less frequent as the infant ages. What is the most likely reason for this?
A. The acquisition of normal microbiota prevents the overgrowth of yeast.
B. The infant begins to produce antifungal antibodies.
C. Vaccines given in early infancy prevent the development of thrush.
D. The eruption of the teeth inhibits the growth of yeast.
Answer: A
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An alteration occurs during the formation of a dikaryotic cell, such that it has twice the number of nuclei compared to a normal dikaryotic cell. Only the number of nuclei changes; the type of nuclei remains the same. This altered cell is most accurately described as having
A. two haploid nuclei. B. two diploid nuclei. C. four diploid nuclei D. has four haploid nuclei. E. two haploid nuclei and two diploid nuclei.
Cataracts occur when the lens becomes opaque. Which symptoms most likely would be present in a patient with this
condition?
a. increased intraocular pressure b. enlarged pupil c. eye pain d. blurred vision e. headache
What is post-transcriptional gene regulation?
a. regulation after translation b. regulation when the DNA is uncoiled and loosened at the nucleosomes to bind transcription factors c. regulation when RNA is processed and exported to the cytoplasm after it is transcribed d. regulation when RNA is translated to protein
Eukaryotic flagella differ from bacterial flagella because only eukaryotic flagella
A. are long, whip-like structures. B. facilitate phototaxis. C. facilitate chemotaxis. D. contain microtubules. E. are used for cell motility.