Bio St 3.1.3

Front

Why are insertion and deletion mutations so harmful?

Back

They change all of the codons from the mutation on down the line, which changes the amino acid sequence.

Front

What is a type of substitution in which no amino acids change called?

Back

Silent

Front

What can ultraviolet rays from the sun cause that may ultimately lead to skin cancer?

Back

Mutations.

Front

What is a change in the nucleotide sequence of a strand of DNA best defined as?

Back

Mutation.

Front

What is the central dogma of biology?

Back

DNA is the blueprint for an organism. RNA copies specific sections that need to be built and transfers that information to a ribosome which assembles proteins out of amino acids.

Front

What are codons?

Back

Codons are sequences of three nucleotides in mRNA that correspond to specific amino acids.

Front

What is a missense mutation?

Back

A missense mutation is a type of substitution mutation that results in a different amino acid being incorporated into a protein.

Front

What is a nonsense mutation?

Back

A nonsense mutation is a mutation that creates a premature stop codon in the protein sequence, leading to incomplete proteins.

Front

What is the role of RNA in protein synthesis?

Back

RNA carries the genetic information from DNA to the ribosome, where proteins are synthesized.

Front

What is the function of ribosomes?

Back

Ribosomes are the cellular structures where proteins are assembled from amino acids.