A random mutation in the DNA sequence is responsible for new variations of a trait. These mutations can be caused by errors during DNA replication, exposure to mutagens or other external factors. The variations produced by mutations can contribute to genetic diversity within a population.
ff
Hemophilia is a mutation of either of the genes that make factor VII or IX. Hemophilia A is a mutation of the F8 gene and Hemophilia B is the mutation of the F9 gene. Both of these mutations occur on the sex-linked X chromosome.
A point mutation, specifically a missense mutation, is responsible for the formation of a protein with one incorrect amino acid. This type of mutation involves a single nucleotide change in the DNA sequence, leading to the substitution of one amino acid in the protein.
A mutation can cause a change in color in a species by altering the genes responsible for producing pigments. This can affect the appearance of an organism by changing the amount or type of pigment produced, leading to variations in coloration. Over time, these mutations can become fixed in a population through natural selection, contributing to the diversity of colors we see in different species.
A recessive trait is a genetic trait that is only expressed when an individual carries two copies of the gene responsible for that trait. It is masked by the presence of a dominant trait when an individual carries one copy of each type of gene.
Polydactyly is a type of genetic mutation that results in individuals being born with extra fingers or toes. It is usually an inherited trait, although it can also occur spontaneously. Polydactyly is considered a rare condition.
There is no single type of mutation that causes Hemophilia A. It is not the type of mutation but rather the location of the mutation within the genetic code.
It is a mutation/
chromosomal mutation
Polygenic inheritance is when two or more genes interact to control a trait. Each gene contributes to the phenotype in an additive manner, resulting in a continuous range of variations for the trait. Examples include human height and skin color.
deletion mutation