In humans, a large number of genes associated with immune function share sequence similarity and are evolutionarily related. These would be known as what kind of group?

What will be an ideal response?


a gene family

Biology & Microbiology

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Among the last line of defenses against prolonged exposure to an extracellular pathogen is _____

A) lysozyme production B) phagocytosis by neutrophils C) antibody production by plasma cells D) histamine release by basophils E) lysis by natural killer cells

Biology & Microbiology

The polymerase chain reaction (PCR) is used as a tool for

A. breaking down DNA for analysis. B. amplifying the amount of DNA to provide a large sample. C. fragmenting DNA into smaller pieces. D. rearranging the gene sequences in isolated fragments of DNA. E. extracting DNA from nuclei.

Biology & Microbiology

The cycle of coral reef formation involves:

a. bioerosion. b. budding to form corallites. c. solidification of rubble by encrusting coralline algae. d. a followed by c

Biology & Microbiology

Habitat: Human Colon

What will be an ideal response?

Biology & Microbiology