Multifactorial inheritance describes the situation were more than one gene affects a single trait. Environmental factors can also contribute to the single trait.
Pleiotropy
Each reproductive cell (gamete) is 1N (the haploid chromosome count) which means it has a single allele for a genetic trait at each gene locus...this is based on the assumption that the trait is controlled at a single site. Polygenic traits, those controlled or modified at more than one locus, will have multiple alleles for a trait.
yes it could......... when it happens its called polygenic inheritance
Well polygenetic inheritiance are traits that is controlled by multiple genes, so for one trait you may have more than two gene controlling it, human eye is an example. For polygenetic inheritance you cannot do a pedigree and calculated the percentage. For mendelian inheritance it all about two alleles for one trait where one is definetly more dominant over the other, it is much simpler than the polygenic trait and can be calculated through a pedigree.
A single-gene trait is a phenotypic trait controlled by two homologous alleles.
The number of phenotypes produced for a given trait depend on how many genes control the trait. Single-gene trait: has two alleles. Fur has 1
Each reproductive cell (gamete) is 1N (the haploid chromosome count) which means it has a single allele for a genetic trait at each gene locus...this is based on the assumption that the trait is controlled at a single site. Polygenic traits, those controlled or modified at more than one locus, will have multiple alleles for a trait.
The outward appearance of a trait is called a phenotype.the alternative form of a gene is called an "allele." Alleles occur at the same locus on homologous chromosones, thus govern the same trait. This term is sometimes used sysnonymously with "gene."
an Allele.
these are selected on the gene locus on a DNA.
yes it could......... when it happens its called polygenic inheritance
A trait is generally expressed phenotypically. An allele is one of a pair alleles at the same locus...often referred to as a gene. An allele is present whether expressed or not. A single gene locus will have two alleles in an individual, but there may be more than 2 alleles for this locus in the population. General human blood groups are an example of this with A,B, O as the primary alleles and several other less common ones...(like M) present in the population.
phenotype
Well polygenetic inheritiance are traits that is controlled by multiple genes, so for one trait you may have more than two gene controlling it, human eye is an example. For polygenetic inheritance you cannot do a pedigree and calculated the percentage. For mendelian inheritance it all about two alleles for one trait where one is definetly more dominant over the other, it is much simpler than the polygenic trait and can be calculated through a pedigree.
A 3:1 phenotypic ratio (Mendelian inheritance).
yes its called pleiotropy
A single-gene trait is a phenotypic trait controlled by two homologous alleles.
Genetic makeup formed from both inherited alleles together is called a genotype. Homozygous alleles would be a pair of identical alleles for a single trait. Heterozygous is different alleles for a single trait.