In ________ immunity, the individual produces antibodies against particular pathogens, while in ________ immunity, the individual is given specific antibodies against a pathogen.
A. active; neutral
B. passive; neutral
C. active; passive
D. neutral; active
E. passive; active
Answer: C
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The restriction enzymes BamHI and BclI cut at the points indicated by arrows: If one sample of DNA was cut with BamHI and another with BclI, and these two samples were mixed and treated with DNA ligase, what would occur?
A) No DNAs would be ligated (joined together). B) Only the BamHI-cut DNA would be ligated. C) Only the BclI-cut DNA would be ligated. D) Both BamHI-cut and BclI-cut DNAs would be ligated, but only to DNA fragments cut with the same enzyme (for example, BamHI fragments would be ligated only to other BamHI fragments). E) Both BamHI-cut and BclI-cut DNAs would be ligated with no preference for which fragment is ligated to which other.
Based on the number of species, the most successful extant phylum of plants is the
A. Anthophyta. B. Coniferophyta. C. Pterophyta. D. Gnetophyta. E. Charophyta. F. Hepaticophyta.
DNA polymerase and aminoacyl-tRNA synthase are similar in that both have proofreading ability, but differ in the substrates that they act upon.
Answer the following statement true (T) or false (F)
The modification of a limb that was used for walking in a preexisting ancestor to one that is used as a wing for a species today is called proteomics.
Answer the following statement true (T) or false (F)