Q. Which is an example of a frameshift mutation?
Frameshift mutations are apparent in severe genetic diseases such as Tay–Sachs disease; they increase susceptibility to certain cancers and classes of familial hypercholesterolaemia; in 1997, a frameshift mutation was linked to resistance to infection by the HIV retrovirus.
Q. Is a frameshift mutation A missense mutation?
Missense mutation: changes an amino acid to another amino acid. Frameshift mutation: Deletion or insertion of a number of bases that is not a multiple of 3. Usually introduces premature STOP codons in addition to lots of amino acid changes.
Q. Which of the following would be considered a frameshift mutation?
Insertions and deletions are called frameshift mutations because they do not just affect one codon, a 3-base sequence that codes for one amino acid, like in base substitutions.
Q. What causes frameshift mutation?
Frameshift mutation are caused by the addition or subtraction of nucleotides from the DNA sequence. Because the genetic code is read in triplets, addition or subtraction of 1 or 2 nucleotides causes a shift in the reading frame.
Q. What is a silent point mutation?
noun, plural: silent mutations. A form of point mutation resulting in a codon that codes for the same or a different amino acid but without any functional change in the protein product. Supplement. Mutation is a change in the nucleotide sequence of a gene or a chromosome.
Q. What does P mean in genetics?
The parental generation refers to the first set of parents crossed. The parents’ genotype would be used as the basis for predicting the genotype of their offspring, which in turn, may be crossed (filial generation). These two plants comprise the parental generation (P generation).
Q. What does C mean in genetics?
C-value is the amount, in picograms, of DNA contained within a haploid nucleus (e.g. a gamete) or one half the amount in a diploid somatic cell of a eukaryotic organism. …
