Biology Chapter 11 -DNA - Review

Which scientist(s) won the Nobel Prize and are credited with discovering the double helix model of DNA?

• Avery
• Franklin and Wilkins
• Watson & Crick
• Rosalind Franklin

*Which scientist confirmed that DNA is genetic material?

• Chargaff
• Crick
• Hershey
• Levene

Which scientist(s) took photo 51 to indicate DNA was a double helix?

• Avery
• Franklin and Wilkins
• Watson & Crick
• Rosalind Franklin

*Which scientist discovered that the bacteria Streptococcus Pneumoniae changed its form?

• Avery
• chase
• griffith
• watson

Which statement did scientists know about molecular genetics in the early 1900s?

• Chromosomes carry genetic information.
• DNA differs from RNA
• DNA is genetic material
• Four basic nucleotides comprise DNA

What can be said about DNA replication?

• Replication is said to be conservative and semidiscontinuous.
• Replication is said to be conservative and continuous.
• Replication is said to be semiconservative and semidiscontinuous.
• Replication is said to be semiconservative and continuous.

Which is the central dogma of biology?

• RNA codes for DNA, which guides enzyme synthesis.
• RNA codes for DNA, which guides protein synthesis.
• DNA codes for RNA, which guides enzyme synthesis.
• DNA codes for RNA, which guides protein synthesis.

A strand containing ribose and uracil is called

• DNA
• RNA

*The ability of an Escherichia coli bacterium to control its gene transcription in response to environmental factors is called

• transcription factors
• RNA interferance
• operon regulation
• gene regulation

Which are the two main parts that make up a chromosome?

• DNA and Protein
• DNA and RNA
• RNA and phosphate
• sugar and phosphate