Question

what is point mutation? Give one example... ​

Answer 1

Answer:

Point mutation is the mutation that affects a single nucleotide or nucleic acid. It commonly occurs when one base is substituted for the other. It may also result due to insertion and deletion of a single base pair.

Point mutation is the mutation that affects a single nucleotide or nucleic acid. It commonly occurs when one base is substituted for the other. It may also result due to insertion and deletion of a single base pair. Examples of point mutation are:

Point mutation is the mutation that affects a single nucleotide or nucleic acid. It commonly occurs when one base is substituted for the other. It may also result due to insertion and deletion of a single base pair. Examples of point mutation are:Cystic fibrosis: It occurs due to the deletion of three nucleotides in the CFTR gene. In this, an amino acid phenylalanine is lost which causes misfolding of protein.

Point mutation is the mutation that affects a single nucleotide or nucleic acid. It commonly occurs when one base is substituted for the other. It may also result due to insertion and deletion of a single base pair. Examples of point mutation are:Cystic fibrosis: It occurs due to the deletion of three nucleotides in the CFTR gene. In this, an amino acid phenylalanine is lost which causes misfolding of protein.Sickle cell anemia: It is caused by single point mutation in the beta haemoglobin gene. This results in the conversion of GAG codon into GUG that encodes amino acid valine.

Answer 2

Answer:

For example, sickle-cell disease is caused by a single point mutation (a missense mutation) in the beta-hemoglobin gene that converts a GAG codon into GUG, which encodes the amino acid valine rather than glutamic acid.

Explanation:

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