Pair-rule developmental genes belong to which class of pattern-regulating genes?

Pair-rule developmental genes belong to which class of pattern-regulating genes?

A. homeotic
B. maternal
C. segmentation
D. None of the choices is correct.

Which of the following sigma factors would be expected to associate with RNA polymerase after increasing the incubation temperature of an E. coli culture from 30C to 42C?

A. 28
B. 32
C. 38
D. 42
E. 54

Which of the following is not a function of the release factors of bacterial translation termination?

A. mediating the hydrolysis of the terminal peptidyl-tRNA bond
B. assisting in the initial folding of the nascent polypeptide chain
C. releasing the last uncharged tRNA from the P site
D. recognition of a stop codon

The maternal genesof fruit flies:

A. are functionally dormant until fertilization.
B. are expressed in the unfertilized egg.
C. provide the proteins required for development until the cellular blastoderm forms.
D. All of the choices are correct.

Which of the following is true of bacterial translation termination?

A. The ribosome continues to synthesize protein until it reaches the 3' end of the mRNA.
B. Termination requires the degradation of the ribosome.
C. Termination is signaled by the presence of a stop codon in the mRNA.

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Pair-rule developmental genes belong to which class of pattern-regulating genes?

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