DNA Structure & Function

Who discovered the that DNA is responsible for an organisms traits?

• Frederick Griffith

• Rosalind Franklin

• Maurice Wilkins

• James Watson

What is the central dogma of biology?

• Proteins → DNA → RNA

• RNA → DNA → proteins

• DNA → RNA → proteins

• RNA → proteins → DNA

What is the basic structure of DNA called?

• Coiled structure

• Double helix

• Single strand

• Triple helix

Which scientist used X-ray diffraction to determine the shape of DNA and did NOT receive a Nobel Prize?

• James Watson

• Francis Crick

• Rosalind Franklin

• Maurice Wilkins

What is the function of DNA in a cell?

• Regulate temperature

• Produce energy

• Store instructions

• Transport nutrients

What type of bonds cause the nitrogen bases in DNA to stick together?

• Strong covalent bonds

• Weak hydrogen bonds

• Metallic bonds

• Ionic bonds

According to Chargaff's Rule, which nucleotides always pair together? (choose 2)

• Guanine and cytosine

• Adenine and thymine

• Adenine and cytosine

• Guanine and thymine

What do we call this 'piece' of DNA?

• Phospate

• Sugar

• Polymer

• Nucleotide

What type of protein attracts to DNA and holds it together in the shape of chromosomes?

• Histones

• Enzymes

• Hormones

• Antibodies

What is the function of proteins in the body?

• Produce DNA

• Form body structure

• Store genetic information

• Regulate blood flow