Molecular Biology

Q. Which two processes are involved in protein synthesis?

• Replication and Transcription

• Transcription and Translation

• Replication and Translation

Q. Which of the following bases is found only in RNA?

• Adenine

• Thymine

• Guanine

• Uracil

Q. Transcribe the following sequence of DNA into RNA:

AAG   CTT   TGC

• TTC  GUU  UCG

• TTC  GAA  ACG

• UUC  GUU  UCG

• UUC  GAA ACG

Q. Which of the following would be a DNA nucleotide?

• phosphate, deoxyribose, uracil

• phosphate, ribose, uracil

• phosphate, deoxyribose, thymine

• phosphate, ribose, thymine

Which of the following terms means that in each molecule of DNA made during replication there is one original strand and one new strand?

• Antiparallel

• Semi-conservative

• Complementary base-pairing

Q. 

Proteins are chains of amino acids bonded together. Which is the correct sequence for making proteins?

• Information in DNA is transferred into RNA and then made into protein

• Information in RNA mutates into DNA and then is made into protein

• Information in DNA is formed into protein directly.

• Information in RNA uses thermal energy to make protein

Which of the following molecules is made during transcription?

• DNA

• protein

• tRNA

• mRNA

 Which form of RNA carries amino acids from the cytoplasm to the ribosome?

• amino RNA

• transfer RNA

• ribosomal RNA

• messenger RNA

 What are the three base segments of mRNA called?

• anticodons

• triplets

• codons

Which of the following best describes a DNA molecule?

• double helix

• made of amino acids

• contains ribose

• contains Uracil