What refers to an individual with two different alleles for a trait?

having the same allele at the same locus on both members of a pair of homologous chromosomes. Homozygous also refers to a genotype consisting of two identical alleles of a gene for a particular trait. An individual may be homozygous dominant (AA) or homozygous recessive (aa).
A.

What is it called when an organism possesses two different alleles for a trait?

An organism's genetic makeup, or allele combinations. heterozygous. Describes an organism that has two different alleles for a trait. homozygous. Describes an organism with two identical alleles for a trait.
B.

What is a cell called when it has 2 identical alleles?

Heterozygous. A diploid organism is heterozygous at a gene locus when its cells contain two different alleles (one wild-type allele and one mutant allele) of a gene. The cell or organism is called a heterozygote specifically for the allele in question, and therefore, heterozygosity refers to a specific genotype.
  • What are two identical alleles called?

    Copies of genes are referred to as "alleles," and because of the way reproduction works, the alleles can carry identical copies of a gene or different copies, depending on what is passed on by each parent. Identical alleles means that a person's genotype for that trait is homozygous.
  • When a trait is influenced by many different genes?

    There are several patterns that account for the inheritance of traits. These include Mendelian or monogenetic, where one gene causes one trait; pleiotropic, where one gene is responsible for multiple traits; and polygenic or multifactorial, where two or more genes are required to produce one trait.
  • What is a trait called when it is controlled by more than one gene?

    A trait that is controlled by more than one gene is called polygenic which translates to "multiple genes". The genes work together to make one trait. Examples are skin, eye and hair color. In that case one gene has more than two alleles. An example of multiple alleles is blood type.
C.

What is an organism that has two identical alleles for a particular trait?

Organisms that have two identical alleles for a particular trait are said to be homozygous (AA) or (aa). 6. Organisms that have two different alleles for the same trait are heterozygous (Aa).

Updated: 11th December 2019

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