Which of the following best describes a nucleotide? a. a nitrogen base and a five-carbon sugar only b. a five-carbon sugar, a phosphate group, and a purine c. a pyrimidine, an purine, and a six carbon sugar d. a nitrogen base and a phosphate group only e. a nitrogen base, a phosphate group, and a five-carbon sugar

Ayoung boy has been found and police are trying to locate his family they take a dna sample from him and begin collec dna samples from families who have missing children if police use dna samples only from the fathers, which type of dn technology can they use to identify the boy's parent? y-chromosome analysis omtdna (mitochondrial dna) analysis vntrs (variable tandem repeats) o pcr (polymerase chain reaction) analysis

What is the correct term for an area of rotating currents in an ocean? when ocean currents combine, they create an area of rotating currents called an

What enzyme is most important for dna replication and why?