Which cell type has a nucleus that appears to have two lobes connected by a thin band, has granules that contain diverse enzymes and antimicrobial toxins, and has mediators that are expelled in response to certain allergens and parasites?
A) monocytes B) eosinophils C) neutrophils D) mast cells E) basophils
Answer: B
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Allof the following evidence supports the RNA world hypothesisexcept:
A. RNA can function as a genome. B. An RNA component of ribosomes catalyzes the synthesis of proteins. C. RNA can serve a structural role. D. RNA stabilizes membranes. E. RNA regulates gene expression.
Your mother has albinism, which is a recessive trait. Your father has cystic fibrosis, which is also a
recessive trait. You just got married and discover that your new father-in-law has albinism and cystic fibrosis. What are the odds that your first child will have neither albinism nor cystic fibrosis?
a. 1/16 b. 3/8 c. 1/8 d. 9/16 e. 0
Single-celled or colonial protists that have a two-part silica shell and are often photosynthetic are called ________
a. diatoms b. flagellated protozoans c. amoebas d. green algae
Describe the process of ovulation
What will be an ideal response?