Question

multiple alleles?.....

Answer 1

Multiple alleles is a type of non-Mendelian inheritance pattern that involves more than just the typical two alleles that usually code for a certain characteristic in a species. With multiple alleles, that means there are more than two phenotypes available depending on the dominant or recessive alleles that are available in the trait and the dominance pattern the individual alleles follow when combined together.

Answer 2

Answer:

(1) Multiple alleles are more than two alternaiive alleles or a gene in a population situated on the same locus on a chromosome or its homologue.

(2) Multiple alleles arise by mutations of the wild type of gene. Series of multiple alleles are formed due to several mutations that take place in the wild type of allele. This series show alternative expression. 3 Different alleles in a series Show dominant-recessive relation or may show co-dominance or incomplete dominance among themsclves. Among all the wild type is the most dominant one Over all other mutant alleles.

(4) In Drosophila, a large number of multiple alleles are known. E-g. The size of wings from normal wings to vestigial wings is due to one allele (vg) in homozygous condition. The normal wing is dominant and wild type while vestigial wing is recessive type.

(5) Human blood groups A, B, AB and O are also due to series of muliple alleles.