RNA and Protein Synthesis

What is the role of mRNA in protein synthesis?

• it makes the bases that makes up DNA

• it copies a section of DNA and uses the information to create the appropriate protein

• it helps DNA perform replication

• it makes the amino acids used in protein synthesis

The bottom of the tRNA molecule joins with the mRNA molecule because it has the _____________ to the mRNA's codon.

• ribosomes

• anticodon

• nitrogen bases

• sugars

The job of the "t-shaped" molecule in this diagram is to

• copy the genetic code from DNA

• bring amino acids to the ribosome so they can be made into a protein

• bring the code from DNA in the nucleus to the ribosome in the cytoplasm

• synthesize amino acids

Tags

NGSS.HS-LS1-1

Which nitrogen base is not a part of RNA molecules?

• thymine

• uracil

• adenine

• cytosine

• guanine

In order for protein synthesis to occur, mRNA must leave the nucleus and travel to

• a ribosome in the cytoplasm

• a mitochondria in the cytoplasm

• a vacuole in the cytoplasm

• a chloroplast in the cytoplasm

What enzyme in the nucleus helps mRNA form?

• DNA polymerase

• RNA polymerase

• pepsin

• nuclease

A nucleotide includes...?

• pentose sugar
• nitrogenous base
• phosphate group
• all of the above

What happens during translation?

• Messenger RNA is made from a DNA code.
• The cell uses a messenger RNA code to make proteins
• Transfer RNA is made from a messenger RNA code.
• Copies of DNA molecules are made.

Which is the correct sequence of the transfer of information in most organisms?

• protein to DNA to RNA
• RNA to DNA to protein
• DNA to RNA to protein
• RNA to protein to DNA

Tags

NGSS.HS-LS1-1

The genetic code is always read

• 3 bases at a time in the same direction.
• 4 bases at a time in the same direction.
• 3 bases at a time and the direction varies.
• 4 bases at a time and the direction varies.