Transcription, Translation and Mutations

Front

What is the role of tRNA in protein synthesis?

Back

tRNA (transfer RNA) is responsible for carrying and bringing amino acids to the ribosome during protein synthesis.

Front

What does mRNA stand for and what is its function?

Back

mRNA stands for messenger RNA, and it serves as the template for protein synthesis, carrying genetic information from DNA to the ribosome.

Front

What are the two types of mutations that can cause a frameshift mutation?

Back

Addition and deletion mutations can cause a frameshift mutation.

Front

Which of the following does not cause mutations: X-rays, Chemicals we smoke or eat, Drinking water, Tanning?

Back

Drinking water does not cause mutations.

Front

What is an example of a harmful mutation?

Back

Developing cancer is an example of a harmful mutation.

Front

Define mutation in the context of genetics.

Back

A mutation is a change in the DNA sequence that can lead to changes in the structure and function of proteins.

Front

What is the difference between a substitution mutation and a frameshift mutation?

Back

A substitution mutation replaces one nucleotide with another, while a frameshift mutation involves the addition or deletion of nucleotides, altering the reading frame.

Front

What is the function of ribosomes in protein synthesis?

Back

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

Front

What is the significance of the genetic code?

Back

The genetic code is a set of rules that defines how the sequence of nucleotides in DNA or mRNA is translated into amino acids in proteins.

Front

What are codons and where are they found?

Back

Codons are sequences of three nucleotides in mRNA that correspond to specific amino acids or stop signals during protein synthesis.