protein synthesis

Which of the following are differences in the structure between RNA and DNA

• DNA uses deoxyribose sugar, RNA uses sugar ribose

• DNA pairs Adenine with Uracil, RNA pairs Adenine with Thymine

• DNA is a double helix, RNA is a single helix

• DNA pairs Adenine with Thymine, RNA pairs Adenine with Uracil

During transcription, this type of ribonucleic acid is responsible for copying the DNA and brining it out of the nucleus.

• tRNA

• mRNA

• rRNA

• dRNA

Which of the following is the complementary mRNA sequence to this DNA strand: AACTGAA

• UUGACUU

• TTGACTT

• AACTGAA

• AACUGAA

Which of the following is the tRNA that will be used to decode to this DNA strand: AACTGA

• AAC and TGA

• TTG and ACT

• UUG and ACU

• AAC and UGA

Choose the nucleotide sequence of the RNA strand that would be complementary to the following strand: 
GTAGTCA

• UATUAGA
• ACGACTG
• CAUCAGU
• CATCAGT

The main function of tRNA is to...

• carry a message that, when translated, forms proteins
• form a portion of ribosomes
• string together complementary RNA and DNA strands
• bring amino acids from the cytoplasm to the ribosomes

Which of the following events occurs directly after RNA polymerase recognizes a gene?

• The polymerase strings amino acids into a polypeptide
• Free-floating nucleotides pair up with exposed DNA bases
• A complementary RNA strand detaches itself from the DNA
• The DNA strand begins to unwind, separating the two strands

What is the term for a three-nucleotide sequence that codes for an amino acid?

• base
• codon
• amine
• serine

Which phrase best describes translation?

• converts mRNA into a polypeptide
• catalyzes bonds between amino acids
• produces RNA from DNA molecules
• recycles tRNA molecules for reuse

Which of the following is the site of translation?

• vacuole
• lysosome
• nucleus
• ribosome