Which cells target parasites and worms?
a. eosinophils
b. B and T cells
c. macrophages
d. phagocytes
e. cytokines
ANSWER: a
You might also like to view...
Because more than one codon can specify the same amino acid, the genetic code is said to be
A. repetitive. B. redundant. C. reverse. D. degenerate. E. degrading.
The mean value of a quantitative trait in F1 offspring is generally smaller than either of the values of the parentals
Indicate whether the statement is true or false
Which of the following provides he weakest evidence that mitochondria were once free living prokaryotes
A. Mitochondrial ribosomes resemble those of prokaryotes B. Mitochondria have DNA that is circular and does not have associated protein C. Enzyme pathways on mitochondrial membranes resemble those found on modern prokaryotes membranes D. Mitochondria reproduce by a process similar to binary fission E. Mitochondria and prokaryotes both are found in a variety of sizes
Cystic fibrosis (CF) is a disease caused by a mutation in a gene called the cystic fibrosis transmembrane conductance regulator (CFTR)
The mutation causes the afflicted individual to produce thick, sticky mucus that the cilia lining the respiratory tract can't easily remove. There is no cure for CF, and most individuals suffering from this condition die in their 20s or 30s. Based on this scenario, what would you conclude about people who have CF? A) They have excessive growth rates that result in gigantism. B) They suffer from incessant coughing and chronic lung infections. C) They have dangerously high blood pressure. D) They have extremely thin skin that is easily damaged. E) They have elevated oxygen levels in their blood.