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(i) what is gene mutation? (ii) Explain how the following occur during gene mutation (a) Deletion (b) Inversion (c) Insertion (d) Substitution iii) Name...

Questions on gene mutation, form four biology

Answers

i) An alteration in the structure of a gene.

ii)a)Deletion

•some bases/nucleotides of a gene are removed.

b) Inversion

•the order of some bases/nucleotides of a gene is reversed.

c) Insertion

•addition of a base between two existing bases.

d) Substitution

•a portion of a gene is replaced by a new portion.

iii) •albinism
•sickle cell anaemia
•achondroplasia/chondordystorphic dwarfism
•haemophilia
•colour blindness
•phenylketonuria
•phenylketonuria

Anganifelix answered the question on April 17, 2018 at 12:56

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