DNA Structure and Protein Synthesis

In the double helix model of DNA, the structures labeled 3 and 4 below are best identified as:

• nitrogen bases
• deoxyribose sugars
• phosphate groups
• amino acids

Tags

NGSS.HS-LS1-1

In the double helix model of DNA, the structure labeled "e" below is best described as a/an:

• nucleotide
• nitrogen base pair
• amino acid group
• codon

Tags

NGSS.HS-LS1-1

Which of the following is NOT a possible nitrogen base in DNA?

• Adenine
• Guanine
• Thymine
• Uracil

Where in the cell does transcription of DNA to mRNA occur?

• ribosomes
• Golgi apparatus
• nucleus
• Rough ER

The diagram below shows the process of translation occurring at structure "3" below. Where does translation occur in the cell?

• nucleus
• ribosome
• smooth endoplasmic reticulum
• chloroplast

Transcribe this sequence of DNA, "TAC TTT CGC", into mRNA:

• TAC AAA GCG
• TTT UUU GCG
• UUU TTT GCG
• AUG AAA GCG

Translate the mRNA, "UUU AAA GCG" into amino acids.

• Phe - Gly - Arg
• Phe - Lys - Ala
• Ala - Lys - Phe
• Arg - Gly - Phe

Tags

NGSS.HS-LS1-1

Which of the following codons signals the start of translation into a protein?

• UGG
• UCA
• UUA
• AUG

The process labeled with arrow 1 happens in the _______.

Which process converts mRNA into a sequence of amino acids?

• Replication

• Transcription

• Translation

• Modification