RNA and Protein Synthesis

What is the first step of protein synthesis?

• Mutation

• tRNA is formed

• mRNA reaches the ribosome

• DNA unzips

If ATG is a section of DNA, what is its mRNA counterpart?

• UAC

• ATG

• GAT

• UCA

Proteins differ from one another by the order of _______.

• Carbohydrates

• Amino acids

• Nucleotides

• Lipids

Tags

NGSS.HS-LS1-1

The function of _____ is to carry specific amino acids to the ribosomes.

• mRNA

• rRNA

• tRNA

• DNA

One tRNA molecule carries ____ nitrogen bases and ____ amino acids.

• Three, One

• Two, Two

• Four, Three

• Five, Four

Proteins are linked by ___________.

• peptide bonds

• carbohydrate bonds

• lipid bonds

• nucleic acid bonds

Tags

NGSS.HS-LS1-1

NGSS.HS-LS1-6

Does tRNA contain an anticodon?

• True

• False

Sequences of three nucleotides encode specific amino acids or serve as stop signals during protein synthesis.

• Nucleotides

• Proteins

• Genes

• Codons

In RNA, Uracil pairs with ______. 

• cytosine

• adenine

• guanine

• thymine

What amino acid is represented by the codon UUA?

• Phenylalanine

• Tyrosine

• Leucine

• Stop codon

Tags

NGSS.HS-LS1-6