Molecular Genetics Quiz 2pd

What is the relationship between a protein, the cell, and DNA?

• DNA is produced by protein which is produced in the cell
• Protein is composed of DNA which is produced in the cell
• DNA controls the production of protein in the cell
• A cell is composed of DNA and protein

Tags

NGSS.HS-LS1-1

A change in the DNA sequence that doesn't change protein made.

• Nonsense

• Silent

• Missense

• Substitution

When the change of one base changes the protein chain, but it is still functional, it is a _________ mutation.

• missense

• nonsense

• silent

• insertion

If an organism's genome is 35% thymine bases, what percent would be guanine bases?

• 20%

• 15%

• 65%

• 35%

Genetic info flows in one direction. Which of the following represents the Central Dogma genetic flow?

• DNA-protein-RNA

• Protein-RNA-DNA

• RNA-protein-DNA

• DNA-RNA-protein

Which of the following statements describes processes that occur during DNA replication?

• A DNA sequence is read by RNA polymerase, which produces another RNA strand complementary to the first strand.
• Two free-floating single strands of DNA are joined by polymerase. The polymerase finds the point at which the two strands will match up into a double strand.
• Messenger RNA are decoded by a ribosome to produce an amino acid chain. In the cell's cytoplasm, transfer RNA join the messenger RNA, forming a polypeptide.
• A double-stranded DNA molecule is unwound into single strands. Polymerase matches the right nucleotides to the single strand so that each forms a double strand of DNA.

What is meant by the phrase "DNA is universal"?

• All organisms possess DNA made up of the same 3 components which serve the same functions.

• All organisms share the exact same DNA codes for proteins.

• DNA can be found throughout the universe.

• DNA is found in all Eukaryotes, but not Prokaryotes.