Review Quiz: Genetic Code

What was Friedrich Miescher's contribution to the discovery of the genetic code?

• He created the first photograph of the structure of DNA.

• He discovered how the DNA bases pair together.

• He created the first accurate model of DNA's structure.

• He extracted and observed DNA from white blood cells.

Which of the following correctly organizes these genetic terms in order from smallest to largest?

• chromosome, gene, nucleotide, DNA

• nucleotide, gene, DNA, chromosome

• DNA, nucleotide, gene, chromosome

• DNA, nucleotide, chromosome, gene

Which best describes the relationship between DNA, genes, and chromosomes?

• DNA are segments of genes that form tight coils called chromosomes.

• Genes are segments of DNA that form tight coils called chromosomes.

• Chromosomes are segments of DNA that form tight coils called genes.

• Genes are segments of chromosomes that form tight coils called DNA.

Who is credited with creating the first accurate model of DNA?

• Rosalind Franklin

• Friedrich Miescher

• James Watson and Francis Crick

• Marshall Nirenberg and Heinrich Matthaei

Rosalind Franklin is famous for which contribution to the study of DNA?

• creation of an accurate model of DNA structure

• creation of an X-ray diffraction image of DNA structure (Photo 51)

• identification of a pattern in ratios of DNA bases

• identification of DNA in bandages that contained pus

In 1953, who developed the model that is shown below?

• James Watson and Francis Crick

• Marshall Nirenberg and Heinrich Matthaei

• Rosalind Franklin

• Erwin Chargaff

According to Chargaff's rule, base pairing in DNA should resemble which of the following?

• A = T; C = G

• A = C; T = G

• A = G; T = U

• A = U; C = G

What was Marshall Nirenberg and Heinrich Matthaei’s contribution to our current understanding of the genetic code?

• discovery of codons

• discovery and extraction of DNA

• creation of a model of DNA

• creation of Photo 51

As DNA is replicated, which DNA base pair will bond to cytosine?

• adenine

• thymine

• cytosine

• guanine

Which bases are found in a strand of DNA?

• thymine, guanine, cytosine, uracil

• guanine, cytosine, uracil, adenine

• cytosine, glycine, adenine, thymine

• adenine, thymine, guanine, cytosine