Two strain of Neurospora crassa , one mutant for gene a , other mutant for gene b , are crossed ,result are shown below

Percent of asci	1+2	3+4	5+6	7+8
77	aB	aB	Ab	Ab
15	aB	AB	ab	Ab
7	aB	ab	AB	Ab
1	aB	Ab	aB	Ab

A and B gene located at

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#Question id: 1826

#Unit 4. Cell Communication and Cell Signaling

Extracellular bacteria are optimally killed by:

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#Question id: 1827

#Unit 4. Cell Communication and Cell Signaling

Extracellular bacteria try to avoid killing by:

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#Question id: 1828

#Unit 4. Cell Communication and Cell Signaling

Toxins are neutralized by:

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#Question id: 1829

#Unit 4. Cell Communication and Cell Signaling

CR1 complement receptors on phagocytic cells bind:

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#Question id: 1830

#Unit 4. Cell Communication and Cell Signaling

Secretory IgA protects external mucosal surfaces by:

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#Question id: 1831

#Unit 4. Cell Communication and Cell Signaling

The pyrogenic streptococcal exotoxins SPE, A, B, and H: