Transcription and Protein Synthesis

The function of _____ is to transport amino acids in the cytoplasm to the ribosome.

• rRNA
• tRNA
• mRNA
• DNA

In proteins, the amino acid order is determined by 

• nitrogenous bases in RNA
• random placement
• nitrogenous bases in DNA
• there is no order

Tags

NGSS.HS-LS1-1

This molecule carries genetic information from the nucleus to the ribosomes in the cytoplasm.

• rRNA
• tRNA
• mRNA
• DNA

Which of these nitrogenous bases is NOT in RNA?

• Uracil
• Thymine
• Cytosine
• Guanine

The monomers units of DNA and RNA are

• amino acids

• monosaccharides

• nucleotides

• fatty acids

The signal that marks the end of a gene and causes transcription to stop is

• polymerase

• ligase

• a terminator

• methionine

The RNA codon AUG means

• add amino acid methionine

• start the protein here

• add the amino acid tyrosine

• end the polypeptide chain here

Which of the following occurs when RNA polymerase attaches a promoter DNA?

• elongation of mRNA

• termination of mRNA

• initiation of a protein

• initiation of mRNA

A gene is

• the same as a chromosome

• the info for making a polypeptide

• made of RNA

• made of protein

Tags

NGSS.HS-LS1-1

When RNA is being made, the RNA base ____ always pairs with the base ___ in DNA.

• U-T

• T-G

• U-A

• A-U