Oxygen compounds toxic to pathogens include

A) hydrogen peroxide.
B) hypochlorus acid.
C) nitric oxide.
D) hydrogen peroxide, hypochlorus acid, and nitric oxide.


Answer: D

Biology & Microbiology

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In a population of Mendel's garden peas, the frequency of the dominant A (yellow flower) allele is 80%. Let p represent the frequency of the A allele and q represent the frequency of the a allele

Assuming that the population is in Hardy-Weinberg equilibrium, what are the genotype frequencies? A. 64% AA, 32% Aa, 5% aa B. 50% AA, 25% Aa, 25% aa C. 16% AA, 40% Aa, 44% aa D. 75% AA, 15% Aa, 10% aa E. 80% AA, 10% Aa, 10% aa

Biology & Microbiology

The three phylogenetic trees shown here all contain the same members and all have a common ancestor, but are divided up in three different ways. Which tree has members circled that are of more than one evolutionary line and does not include the most recent common ancestor of the included lineages? What type of group is this?



A. Tree 1; monophyletic.
B. Tree 2; polyphyletic.
C. Tree 2; paraphyletic.
D. Tree 3; monophyletic.
E. Tree 3; polyphyletic.

Biology & Microbiology

Describe the evolutionary relationship of lancelets to tunicates and to hagfishes. Are lancelets more closely related to tunicates or to hagfishes, or are they equally related?

What will be an ideal response?

Biology & Microbiology

ATP is a portable form of energy "currency" inside cells.

a. true b. false

Biology & Microbiology