Table of Contents
What is a simple definition of an allele?
An allele is one of two or more versions of a gene. An individual inherits two alleles for each gene, one from each parent. If the two alleles are the same, the individual is homozygous for that gene.
What is meant by alleles Class 10?
Alleles are a pair of alternative forms of a gene. Each gene is present in two alternative forms, each called an allele. Each allele controls a single trait. Traits can be either dominant or recessive.
Which is a good definition of allele?
An allele is one of a pair of genes that appear at a particular location on a particular chromosome and control the same characteristic, such as blood type or color blindness. Alleles are also called alleleomorphs.
What is an allele and what would be an example of it?
Alleles are different forms of the same gene. An example of alleles for flower color in pea plants are the dominant purple allele, and the recessive white allele; for height they are the dominant tall allele and recessive short allele; for pea color, they are the dominant yellow allele and recessive green allele.
What is difference between genes and alleles?
Gene is defined as a section of DNA that encodes for a certain trait. An allele is defined as a variant form of a gene. It determines an organism’s genotype. It determines an organism’s phenotype.
What do you mean by alleles Class 12?
An allele is an alternative form of a gene. It is located at a specific position on a specific chromosome. These can be passed on from parents to offspring through sexual reproduction.
What is the difference between an allele and a gene?
A gene is a unit of hereditary information. Except in some viruses, genes are made up of DNA, a complex molecule that codes genetic information for the transmission of inherited traits. Alleles are also genetic sequences, and they too code for the transmission of traits.
What is Byjus allele?
Alleles are alternative forms of a single gene, which code for a pair of contrasting traits. These alleles contribute to the diversity in phenotype expression. An individual contains a pair of alleles for a particular gene and are located in the same place on a chromosome.
What is a gene VS allele?
What are facts about allele?
Dominance. In a heterozygote the effect of one allele may completely ‘mask’ the other.
How would you describe what an allele is?
An allele is an alternative form of a gene (one member of a pair) that is located at a specific position on a specific chromosome. These DNA codings determine distinct traits that can be passed on from parents to offspring through sexual reproduction.
What is the difference between an allele and a chromosome?
Allele is a specific variation of gene whereas locus is that point on a chromosome which contains the gene.
What is allele responsible for?
Genotype is the genetic make-up of an allele. The allele responsible for a trait is usually indicated by a capital letter for the dominant factor (such as B for brown eye ) and by a lowercase letter for the recessive factor (such as b for blue eye).