Protein Synthesis Review

What process is happening in B?

• Replication

• Translation

• Transcription

What is the organelle labeled D (gray-shaded oval)?

• nucleus

• cytoplasm

• ribosome

• DNA

Tags

NGSS.HS-LS1-1

The molecule labeled F is a polymer. What is the monomer that makes up this polymer?

• polypeptide

• nucleotide

• transfer RNA

• amino acid

Tags

NGSS.HS-LS1-1

NGSS.HS-LS1-6

What is the 3-base segment (circled in green) called?

• codon

• anticodon

• nucleotide

Which process is happening on the organelle labeled D?

• transcription

• translation

• replication

Tags

NGSS.HS-LS1-1

What would most likely happen next if the cell did not make RNA polymerase?

• It would cause mutations in the DNA

• The cell would not make messenger RNA

• The cell could not replicate its DNA

• The mRNA would leave the nucleus and attach to a ribosome

Tags

NGSS.HS-LS1-1

An mRNA codon reads A T G. What is the tRNA anticodon that would be complementary to this codon?

• U A C

• T A C

• C A T

• C A U

A DNA sequence reads T T A G A T T C A C T G. What are amino acids that this sequence codes for (in the correct order)?

• asn leu ser asp

• asp ser leu asn

• leu asp ser leu

Tags

NGSS.HS-LS1-1

DNA carries the information needed to make proteins. How is this information used to make proteins?

• Ribosomes "read" the DNA and translate each group of 3 nucleotides into amino acids to build proteins with the help of mRNA and tRNA

• DNA is transcribed into mRNA. Ribosomes "read" the mRNA and translate each group of 3 nucleotides into amino acids to build proteins, with the help of tRNA

• mRNA is transcribed into tRNA. Ribosomes "read" the tRNA and translate each group of 3 nucleotides into amino acids to build proteins

• DNA is transcribed into tRNA. Ribosomes "read" the tRNA and translate each group of 3 nucleotides into amino acids to build proteins, with the help of mRNA

Tags

NGSS.HS-LS1-1

There are 64 possible 3-base codons in the genetic code. However, there are only 20 amino acids. How are the 64 codons used to code for 20 amino acids?

• Each amino acid is specified by 1 to 6 different codons, and there are 3 stop codons.

• Each amino acid is specified by 3 codons. The remaining four codons are start codons or stop codons.

• Each amino acid is specified by 1 codon. The other 44 possible codons are never used.

• Each amino acid is specified by 2 to 4 different codons, and there are 3 stop codons.