DNA and Genetics Quiz

What is the complete complement of DNA in a cell called?

• Chromosome

• Nucleotide

• Genome

• Plasmid

In prokaryotes, what form does the genome typically take?

• Linear strands

• Double-stranded loops

• Single-stranded loops

• Circular or looped double-stranded DNA

How many chromosomes do human somatic cells contain?

• 23

• 46

• 22

• 44

Who were the scientists awarded the Nobel Prize in Medicine in 1962 for their work on the structure of DNA?

• Linus Pauling and Maurice Wilkins

• Rosalind Franklin and Linus Pauling

• James Watson, Francis Crick, and Maurice Wilkins

• James Watson and Rosalind Franklin

What are the building blocks of DNA called?

• Amino acids

• Nucleotides

• Proteins

• Sugars

Which nitrogenous bases are purines?

• Adenine and Thymine

• Cytosine and Guanine

• Adenine and Guanine

• Thymine and Cytosine

What is the structure of DNA as proposed by Watson and Crick?

• Single-stranded helix

• Double-stranded helix

• Triple-stranded helix

• Quadruple-stranded helix

Which base pairs with adenine in DNA?

• Cytosine

• Guanine

• Thymine

• Uracil

What is the sugar component in RNA?

• Deoxyribose

• Ribose

• Glucose

• Fructose

Which nitrogenous base is replaced by uracil in RNA?

• Adenine

• Cytosine

• Guanine

• Thymine