Genes and Mutations

Front

What is a substitution mutation?

Back

A substitution mutation is a type of mutation where one nucleotide is replaced with a different nucleotide in the DNA sequence.

Front

What amino acid does the codon AAU code for?

Back

The codon AAU codes for the amino acid Asparagine.

Front

What are variations in genetics?

Back

Variations are differences in traits among individuals, explaining why siblings may not look exactly alike.

Front

What are mutations?

Back

Mutations are changes in the genetic material (DNA) that can lead to variations in traits.

Front

What amino acid does the codon GAC code for?

Back

The codon GAC codes for the amino acid Aspartic Acid.

Front

What is a nucleotide?

Back

A nucleotide is the basic building block of DNA and RNA, consisting of a sugar, a phosphate group, and a nitrogenous base.

Front

What is the role of codons in genetics?

Back

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

Front

What is the difference between addition and deletion mutations?

Back

Addition mutations involve the insertion of extra nucleotides, while deletion mutations involve the loss of nucleotides from the DNA sequence.

Front

What is the significance of mutations in evolution?

Back

Mutations introduce genetic diversity, which is essential for evolution as it provides raw material for natural selection.

Front

What is a point mutation?

Back

A point mutation is a type of mutation that affects a single nucleotide in the DNA sequence.