S137 Unit 4: DNA Structure and Function Quiz Review

The two strands of a DNA molecule are connected by

• hydrogen bonds between the codons and anticodons

• hydrogen bonds between the bases of one strand and the bases of another strand

• hydrogen bonds between deoxyribose sugar molecules of one strand and deoxyribose molecules of the second strand

• covalent bonds between phosphate groups

• covalent bonds between the nitrogen bases

Which of the following cannot form a base-pair?

• Cytosine DNA nucleotide with a Guanine DNA nucleotide

• Adenine DNA nucleotide with a Thymine DNA nucleotide

• Adenine DNA nucleotide with a Uracil RNA nucleotide

• Cytosine DNA nucleotide with a Guanine RNA nucleotide

• Adenine DNA nucleotide with a Thymine RNA nucleotide

Which of the following is true?

• A messenger RNA molecule has the form of a double helix

• Ribosomes contain RNA nucleotides and amino acids

• The uracil nucleotide consists of the uracil nitrogen base, a deoxyribose sugar, and a phosphate group

• When tRNA attaches to mRNA during translation, cytosine bonds to guanine and adenine bonds to thymine

• In eukaryotes, DNA is manufactured in the nucleus and RNA is manufactured in the cytoplasm

Which of the following contains the code for a protein?

• DNA polymerase

• RNA polymerase

• rRNA

• tRNA

• mRNA

Tags

NGSS.HS-LS1-1

NGSS.HS-LS3-1

What is the correct amino acid sequence for the mRNA code AUGCCAGUAUGA

• Met-Pro-Ala-Val
• Met-Pro-Val
• Tyr-Gly-His
• Tyr-Gly-Arg-His

Tags

NGSS.HS-LS1-1

What is the term for a three-nucleotide sequence that codes for an amino acid?

• base
• codon
• amine
• serine

Translation takes place in the 

• ribosome
• chloroplast
• nucleus
• mitochondria

During protein synthesis, what does mRNA do?

• it strings together two complementary DNA strands

• it constructs proteins out of random amino acids

• it delivers DNA's instructions for making proteins to the ribosome

• it constructs proteins out of random amino acids

Check all that apply to DNA

• single strand

• thymine

• deoxyribose

• small molecule

• unable to leave the nucleus

Check all the ones that apply to RNA

• single strand

• uracil

• large molecule

• leaves the nucleus

• unable to leave the nucleus