Is/are used to cut dna at a specific nucleotide sequence.
a. gel electrophoresis
c. restriction enzymes
b. polymerase chain reactions
d. recombinant dna

Which statement best describes the relationship between an allele and a gene? question 1 a. an allele is a variation of a gene that can be expressed as a phenotype. b. an allele is the part of a gene that attaches to messenger rna molecules. c. an allele is a segment of a dna molecule that controls replication of a gene.

The activity of the modern sample is 1.10 bq . how long does that measurement take?

What molecule contains an organisms genetic material, passed down from parents to their offspring