Which of the following does NOT contribute to a pathogen's invasiveness?
a. Toxins
b. Capsule
c. Cell wall
d. Hyaluronidase
e. Ligands
Ans: a. Toxins
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Answer the following statements true (T) or false (F)
1. Somatic cell mutations are heritable. 2. Mutations can produce a polypeptide with increased function. 3. The timing of a mutation during development has negligible effects on the severity of the genetic defect. 4. Larger genes are usually more likely to incur a mutation than smaller genes.
An allopolyploid is ____
a. a polyploid that arose from hybridization b. a species that arose parapatrically c. an allopatrically arising species d. a polyploid arising from a single diploid individual e. any sympatrically arising species
Most of the enzymes that catalyze the biochemical reactions involving amino acids recognize the L
stereoisomer.
Indicate whether the statement is true or false.Masses of air and water are deflected to the right in the Northern Hemisphere and to the left in the Southern Hemisphere
Indicate whether the statement is true or false