What term is best defined as an organism with two identical alleles for a character?


What is the word for two of the same alleles?

If the two alleles are the same, the individual is homozygous for that gene. If the alleles are different, the individual is heterozygous. Though the term allele was originally used to describe variation among genes, it now also refers to variation among non-coding DNA sequences.

Where do two alleles come from if each organism has two alleles for a particular trait?

Genes come in different varieties, called alleles. Somatic cells contain two alleles for every gene, with one allele provided by each parent of an organism.

What is the difference between H * * * * * * * * * and heterozygous?

While individual organisms bearing different alleles (Rr) are known as heterozygous.

Homozygous vs Heterozygous.

Homozygous Heterozygous
Contains only one type of allele, either dominant or recessive Contains different alleles for a trait. Both dominant and recessive

What is meant by epistasis?

Epistasis is genetic phenomenon that is defined by an interaction of genetic variation at two or more loci to produce a phenotypic outcome that is not predicted by the additive combination of effects attributable to the individual loci.

What is an example of a heterozygous?

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.

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What is homozygous and heterozygous?

Homozygous: You inherit the same version of the gene from each parent, so you have two matching genes. Heterozygous: You inherit a different version of a gene from each parent. They do not match.

What is an example of homozygous?

Homozygous means that the organism has two copies of the same allele for a gene. … For example, pea plants can have red flowers and either be homozygous dominant (red-red), or heterozygous (red-white). If they have white flowers, then they are homozygous recessive (white-white). Carriers are always heterozygous.