Epigenetic inheritance may depend on all the following except:

Epigenetic inheritance may depend on all the following except:

A. the DNA sequence from a parent.
B. inherited chemical modification of parental nucleotides.
C. inherited nucleosome structure of chromosome.
D. inherited chemical modification of parental proteins.

A mutation in a tRNA gene could potentially decrease the ability of that tRNA to (select all that apply):

A. complex with ribosomes.
B. bind to an amino acid.
C. bind multiple amino acids simultaneously.
D. control DNA replication.
E. code for protein.

Crick's proposed adaptor molecule is now known to be:

A. mRNA.
B. rRNA.
C. tRNA.
D. imRNA.

rRNA is (select all that apply):

A. associated with ribosomes.
B. the least abundant RNA in the cell.
C. the most abundant RNA in the cell.
D. relatively consistent in sequence between organisms.
E. considerably variable in sequence between organisms.

George Beadle and Edward Tatum created a collection of mutants to study the following pathway.

A mutant shows no growth on minimal media; however it shows growth if citrulline is provided.

These results indicate the mutation would most likely be in the gene for:

A. Enzyme I.
B. Enzyme II.
C. Enzyme III
D. either Enzyme I or Enzyme II.
E. either Enzyme II or Enzyme III.

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Epigenetic inheritance may depend on all the following except:

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