AP BIOLOGY

Detailed explanation-1: -A point mutation occurs in a genome when a single base pair is added, deleted or changed. While most point mutations are benign, they can also have various functional consequences, including changes in gene expression or alterations in encoded proteins.

Detailed explanation-2: -A point mutation is a change in a single nucleotide in DNA. This type of mutation is usually less serious than a chromosomal alteration. An example of a point mutation is a mutation that changes the codon UUU to the codon UCU.

Detailed explanation-3: -A genetic alteration caused by the substitution of a single nucleotide for another nucleotide. Also called point variant.

Detailed explanation-4: -All mutations are changes in the nucleotide sequence of DNA, which occur by way of random mistakes. While some mutations involve large sections of DNA, point mutations are changes in the genetic sequence that occur at a specific point along the DNA strand.

Detailed explanation-5: -The difference between multiple and single point mutations is that the point mutation only alters one base of nucleotides, while multiple mutations can also affect entire sections of chromosomes. Multiple point mutations can also occur in a single strand of DNA or RNA.