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I think you are referring to the term homozygous. This term applies not to the entire organism but is typically used with regard to one trait. For example, homozygous tall or homozygous dwarf when referring to height in peas. The term heterozygous refers to having one dominant and one recessive gene, or at least to having two different forms of the gene.

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What do you call an organism with two dominant or two recessive gene's for a single trait?

Homozygous.


When two or more forms of the gene for a single trait exists some forms of the gene may be what and others may be what?

When two or more forms of a gene for a single trait exist, some forms of the gene may be dominant, while others may be recessive. Dominant alleles can mask the expression of recessive alleles in a heterozygous individual. This variation leads to different phenotypes depending on the combination of alleles an organism possesses.


What describes the mating of organisms that have different homozygous alleles for a single trait?

The mating of organisms with different homozygous alleles for a single trait is referred to as a monohybrid cross. In this scenario, one parent possesses two dominant alleles (homozygous dominant), while the other has two recessive alleles (homozygous recessive). The offspring produced from this cross will be heterozygous, displaying the dominant trait, while the recessive trait will not be expressed in the phenotype. This type of cross is often used to illustrate basic principles of Mendelian inheritance.


When a organism has two different alleles coding for a single trait it is?

heterozygous. This means the organism has inherited two different versions of a gene that code for the same trait. One allele may be dominant and the other recessive, influencing the organism's phenotype.


Why is an organism genotype may be homozygous dominant homozygous recessive or heterozygous but never heterozygous recessive?

I take it you're referring to the phenotype. Say a trait, like flower colour, is influenced by a single gene. The plant will possess two copies of the gene, one from each parent, but only one colour is expressed. Let's say that red is dominant and white is recessive. A plant containing 2 red alleles (homozygous for the dominant allele) will be red. A plant containing 2 copies of the white allele (Homozygous recessive) will be white and heterozygous plant, containing a single copy of both alleles will be red. There is no heterozygous recessive because the dominant allele will determine the phenotype.

Related Questions

What do you call an organism that possesses one dominant and one recessive genes for a single trait?

heterozygous


What do you call an organism that possesses one dominate and one recessive genes for a single trait?

heterozygous


What do you call a organism that possesses one dominate and one recessive genes for a single trait?

heterozygous


What do you call an organism with two dominant or two recessive gene's for a single trait?

Homozygous.


When both dominant and recessive alleles are present within a single nucleus the organism is for the trait?

You are supposed to have 2 alleles in a single nucleus and if not there can be a disorder i believe.


What do you call oransim that posssses two dominant or two recessive genes for a single trait?

Homozygous dominant for two dominant genes or homozygous recessive for two recessive genes.


An organism with two different alleles for a single trait is said to be heterozygous?

A heterozygous is a hybrid of genes. It has a dominant and recessive gene. The dominant gene covers over the recessive trait, making the individual have the dominant trait. (trait are alleles...) or apex ans:two


Is turners recessive or dominant?

It is neither recessive nor dominant because it is a chromosomal disorder and not just a problem present in a single gene.


What describes the mating of organisms that have different homozygous alleles for a single trait?

The mating of organisms with different homozygous alleles for a single trait is referred to as a monohybrid cross. In this scenario, one parent possesses two dominant alleles (homozygous dominant), while the other has two recessive alleles (homozygous recessive). The offspring produced from this cross will be heterozygous, displaying the dominant trait, while the recessive trait will not be expressed in the phenotype. This type of cross is often used to illustrate basic principles of Mendelian inheritance.


Is it possible to have a dominate recessive trait?

no, because dominant is different from recessive, its impossible to have a dominant-recessive trait because the dominant is when only one copy of the gene is present, while in the recessive a trait that must be contributed by both parents in order to appear in the offspring, in short the dominant is for single parent, while in the recessive is a product of two parents.


Dominant and recessive genes?

Dominant genes are shown for example as T recessive genes are shown as t if there is a dominant and recessive gene (Tt) then your child will get the dominant one this is called heterozygous. Meaning that they have two different genes for a trait such as curly hair and straight hair. There is also being homozygous (TT or tt) the only way your child could recieve a recessive gene such as left handednes, is if the two parents were carrying a recessive gene along with their dominant one or if they both were carrying two reccesive genes. the childs probable genotype can be explaind a lot better with a Punnet Square. I hope this wasn't too confusing.:-)


When a organism has two different alleles coding for a single trait it is?

heterozygous. This means the organism has inherited two different versions of a gene that code for the same trait. One allele may be dominant and the other recessive, influencing the organism's phenotype.