"DNA fingerprint" information indicates that you have two different versions of the allele for a particular skin protein. These alleles are called

A. homozygous.
B. recessive.
C. heterozygous.
D. dominant.
E. homologous.


C. heterozygous.

Biology & Microbiology

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One type of polyploidy is ____

a. aneuploidy b. trisomy c. triploidy d. deletion e. translocation

Biology & Microbiology

The role of DNA ligase is to

a. join together fragments of DNA. b. replace mispaired bases. c. initiate DNA replication. d. form new DNA polymers. e. break apart hydrogen bonds.

Biology & Microbiology

What is a sigma factor? How does elevated temperature induce transcription of heat shock proteins in bacteria via a sigma factor?

What will be an ideal response?

Biology & Microbiology

In the absence of tryptophan, __________

A) the inactive repressor cannot bind trpO, so operon gene transcription occurs B) the active repressor binds trpP, so operon gene transcription is repressed C) the inducer cannot bind trpO, so operon gene transcription occurs D) the active repressor cannot bind trpO, so operon gene transcription is attenuated E) the repressor binds the corepressor, and operon gene transcription occurs

Biology & Microbiology