MODULE 7 REVIEW

Front

What is the role of DNA polymerase during DNA replication?

Back

DNA polymerase adds complementary nucleotides to the growing DNA strand, ensuring accurate replication of the DNA sequence.

Front

What sugar is found in RNA?

Back

Ribose is the sugar found in RNA.

Front

What are anticodons and where are they found?

Back

Anticodons are sequences of three nucleotides on tRNA that are complementary to codons on mRNA.

Front

What genetic disorder is caused by a mutated brain enzyme leading to deterioration of the brain and nerves?

Back

Tay-Sachs disease is caused by a mutated brain enzyme resulting in deterioration of the brain and nerves.

Front

What genetic condition is caused by an extra chromosome 21?

Back

Down Syndrome is caused by an extra chromosome 21, leading to mental impairment and physical features such as a flattened face.

Front

What is the function of tRNA in protein synthesis?

Back

tRNA transports amino acids to the ribosome, matching them to the corresponding codons on the mRNA.

Front

Define the term 'mutation' in genetics.

Back

A mutation is a change in the DNA sequence that can lead to changes in protein function and may result in genetic disorders.

Front

What is the difference between DNA and RNA?

Back

DNA contains deoxyribose sugar and is double-stranded, while RNA contains ribose sugar and is single-stranded.

Front

What is the significance of codons in mRNA?

Back

Codons are sequences of three nucleotides in mRNA that specify which amino acid will be added during protein synthesis.

Front

What is the role of ribosomes in protein synthesis?

Back

Ribosomes are the cellular structures where protein synthesis occurs, translating mRNA into a polypeptide chain.