GENETICS EXAM 1 COMPREHENSIVE STUDY
QUESTIONS AND ANSWERS
◉ What is an allele?
Answer: An alternative version of a gene
◉ What is a locus?
Answer: The specific location of a gene on a chromosome
◉ Which process produces four haploid cells?
Answer: Meiosis
◉ Which scientist discovered transformation?
Answer: Griffith
◉ What did Avery, MacLeod, and McCarty identify as the
transforming principle?
Answer: DNA
◉ What organism did Hershey and Chase use?
Answer: Bacteriophages
, ◉ What did Meselson and Stahl prove?
Answer: DNA replication is semiconservative
◉ Which base is found in RNA but not DNA?
Answer: Uracil
◉ What is the central dogma?
Answer: DNA → RNA → Protein
◉ Which enzyme unwinds DNA?
Answer: Helicase
◉ Which enzyme synthesizes RNA primers?
Answer: Primase
◉ Which enzyme joins Okazaki fragments?
Answer: DNA ligase
◉ In what direction is DNA synthesized?
Answer: 5' to 3'
QUESTIONS AND ANSWERS
◉ What is an allele?
Answer: An alternative version of a gene
◉ What is a locus?
Answer: The specific location of a gene on a chromosome
◉ Which process produces four haploid cells?
Answer: Meiosis
◉ Which scientist discovered transformation?
Answer: Griffith
◉ What did Avery, MacLeod, and McCarty identify as the
transforming principle?
Answer: DNA
◉ What organism did Hershey and Chase use?
Answer: Bacteriophages
, ◉ What did Meselson and Stahl prove?
Answer: DNA replication is semiconservative
◉ Which base is found in RNA but not DNA?
Answer: Uracil
◉ What is the central dogma?
Answer: DNA → RNA → Protein
◉ Which enzyme unwinds DNA?
Answer: Helicase
◉ Which enzyme synthesizes RNA primers?
Answer: Primase
◉ Which enzyme joins Okazaki fragments?
Answer: DNA ligase
◉ In what direction is DNA synthesized?
Answer: 5' to 3'
