What does it mean to have a heterozygous allele?
= Heterozygous refers to having inherited different forms of a particular gene from each parent. A heterozygous genotype stands in contrast to a homozygous genotype, where an individual inherits identical forms of a particular gene from each parent.
What makes an allele trait homozygous or heterozygous?
Difference between homozygous and heterozygous
Unlike homozygous, being heterozygous means you have two different alleles. You inherited a different version from each parent. … It’s the opposite of being homozygous, where the trait of the matching alleles — either dominant or recessive — is expressed.
What is an example of heterozygous allele?
If the two versions are different, you have a heterozygous genotype for that gene. For example, being heterozygous for hair color could mean you have one allele for red hair and one allele for brown hair. The relationship between the two alleles affects which traits are expressed.
What is homozygous allele?
(HOH-moh-ZY-gus JEE-noh-tipe) The presence of two identical alleles at a particular gene locus. A homozygous genotype may include two normal alleles or two alleles that have the same variant.
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. If the alleles are different, the individual is heterozygous.
What is an allele quizlet?
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.
What are the differences between genes and alleles between homozygous and heterozygous conditions?
Homozygous: individual carries two alleles that are the same for a particular gene; heterozygous: individual carries two different alleles for a particular gene.