Quick Answer: What Is The Difference Between An Allele A Gene And A Locus Quizlet?

What is the difference between a gene and an allele?

A gene is a unit of hereditary information.

The short answer is that an allele is a variant form of a gene.

Explained in greater detail, each gene resides at a specific locus (location on a chromosome) in two copies, one copy of the gene inherited from each parent.

The copies, however, are not necessarily the same..

What is a locus and allele?

Alleles are variants of the same gene that occur on the same place on a chromosome. (Through a mutation, they are different.) A locus refers to the location on the chromosome where the gene is found.

What is allele example?

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 exactly is an allele?

Allele, also called allelomorph, any one of two or more genes that may occur alternatively at a given site (locus) on a chromosome. Alleles may occur in pairs, or there may be multiple alleles affecting the expression (phenotype) of a particular trait.

What is the difference between an allele a gene and a locus?

An allele is a variant of a gene. Each cell has two alleles (one per parent) for each gene: one dominant, one recessive. … Locus is to some extent interchangeable with gene, though locus is less specific and doesn’t imply that the location codes for an entire gene.

How many alleles can a gene have?

two allelesAn 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. If the alleles are different, the individual is heterozygous.

How do you explain allele?

An allele is one of the possible forms of a gene. Most genes have two alleles, a dominant allele and a recessive allele. If an organism is heterozygous for that trait, or possesses one of each allele, then the dominant trait is expressed.

What is the best 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. Your blood type is determined by the alleles you inherited from your parents.

How do a chromosome a gene and an allele differ?

A gene is a stretch of DNA or RNA that determines a certain trait. Genes mutate and can take two or more alternative forms; an allele is one of these forms of a gene. Chromosomes occur in pairs so organisms have two alleles for each gene — one allele in each chromosome in the pair. …