AP BIOLOGY

HEREDITY

MUTATIONS

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Look at the following sequence:THE FAT CAT ATE THE RAT. Delete the first H and regroup the letters in groups of three (write out the new groups of three). What type of mutation is this?
A
Insertion
B
Translocation
C
Deletion
D
Transversion
Explanation: 

Detailed explanation-1: -What type of mutation is this an example of? The sentence obtained after removing H and regrouping the letters in the group of three does not make any sense or it can be considered a non-sense sentence. This is an example of a frameshift mutation.

Detailed explanation-2: -A point mutation is a simple change in one base of the gene sequence. This is equivalent to changing one letter in a sentence, such as this example, where we change the ‘c’ in cat to an ‘h’: Original The fat cat ate the wee rat. Point Mutation The fat hat ate the wee rat.

Detailed explanation-3: -Substitution mutation-Nitrogen bases are substituted for others, changing the codons. The fat cat ate the wee rat. The fat cat att hew eer at.

Detailed explanation-4: -An insertion changes the DNA sequence by adding one or more nucleotides to the gene. As a result, the protein made from the gene may not function properly. A deletion changes the DNA sequence by removing at least one nucleotide in a gene.

Detailed explanation-5: -Therefore, frameshift mutations result in abnormal protein products with an incorrect amino acid sequence that can be either longer or shorter than the normal protein.

There is 1 question to complete.