24-25 RNA & Protein Synthesis

mRNA needed in protein synthesis because DNA cannot leave the cell.

• True

• False

the chemical bond that forms between the carboxyl group of one amino acid and the amino group of another amino acid

• polypeptide

• peptide bond

• promoter

• operator

Josh is assigned a project to make a strand of mRNA from DNA. The DNA code that he has been assigned is CGG TCG AGT GAT. What would be the correct code for Josh to use in this transcription.

• GCC AGC TCA CTA

• GCC AGG TGA CTA

• GCC UGC UCA CUU

• GCC AGC UCA CUA

a sequence of three bases of a tRNA molecule that pairs with the complementary three nucleotide codon of an mRNA molecule during protein synthesis; example anticodon CCC pairs with mRNA codon GGG

• stop codon

• anticodon

• polypeptide

• insertion

What must happen to the DNA molecule before mRNA can be created?

• DNA must not unzip

• the 2 DNA strands must separate

• DNA needs to exchange bases with RNA

• nothing needs to happed to the DNA molecule

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 are amino acids held together by?

• Peptide Bonds

• Proteins

• RNA

• DNA

What does mRNA stand for?

• Messenger RNA

• Maximum RNA

• Manager RNA

• Master RNA

What is the role of mRNA in protein synthesis?

• To carry genetic information from DNA to the ribosome

• To form the structure of ribosomes

• To transport amino acids to the ribosome

• To replicate DNA

What are the nucleotides made of?

• Sugar, Phosphate, nitrogen base
• Phosphate, Adenine, nitrogen base
• Thymine, Adenine, Cytomine
• Phosphate, Nitrogen, Adenine