Mutation Flashcards
What is a gene mutation base substitution
A change to the sequence or quantity of bases in the dna molecule
It results in a different amino acid sequence being coded for so different primary structure which leads to a different secondary structure and then different 3D shape tertiary specific shape
What is base deletion
When a base is deleted causes the codon and bases shift one position to the left and the codon is read in a different order which lead to a different primary sequence which then leads to a different secondary structure a different tertiary structure
What is polyploidy
More than two sets of chromosomes in a cell usually occurs in plants
What is nondisjection
In. Meiosis occurs spontaneously when the chromosomes fail to seperate into different cell which lead to gametes having either extra or fewer chromosomes at fertilisatio
What is chromosome mutation
A change to the number of chromosomes in a cell
