Genetics Quiz

What are genes?

• Coded DNA instructions that control the production of proteins.

• Coded RNA instructions that control the production of proteins.

• Coded DNA instructions that control the production of carbohydrates.

• Coded RNA instructions that control the production of carbohydrates.

How can genetic messages be decoded?

• By copying part of the nucleotide sequence from RNA into DNA.

• By copying part of the nucleotide sequence from DNA into RNA.

• By copying part of the nucleotide sequence from proteins into DNA.

• By copying part of the nucleotide sequence from proteins into RNA.

What does RNA contain coded information for?

• Making carbohydrates.

• Making lipids.

• Making proteins.

• Making nucleotides.

What is the function of Messenger RNA (mRNA)?

• It carries genetic messages from DNA to the ribosome for the synthesis of proteins.

• It synthesizes DNA from RNA.

• It transports amino acids to the ribosome.

• It forms the structural components of ribosomes.

What is each set of 3 bases in mRNA called?

• Anticodon

• Codon

• Nucleotide

• Triplet

Which base is specifically mentioned in the diagram associated with mRNA?

• Adenine

• Thymine

• Uracil

• Cytosine

How many codons are there for 20 amino acids?

• 20

• 64

• 4

• 16

Why do different codons create the same amino acid?

• Because there are only 4 bases

• Because of redundancy in the genetic code

• Because of the presence of RNA

• Because of the presence of DNA

What happens if there is a mistake in the genetic code?

• It will create a different amino acid

• It will still make the appropriate amino acid

• It will stop protein synthesis

• It will create a new protein

Which bases are used to write the genetic code?

• A, T, C, and G

• A, U, C, and G

• A, U, T, and G

• A, T, U, and C