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One way is if an allele for the gene in question is dominant. Homozygotes for the dominant allele and heterozygotes will both have the same phenotype.

Organisms have the same phenotype, or physical characteristics. They do not, however, have the same genotype, or genetic makeup. If T represent tall, and t represnts short then the organism will have the genotypes TT and Tt. If you make a Punnett square you will have the same phenotype but different genotypes. Unless some weird mutation occurs....

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Daryl Kemmer

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1y ago
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12y ago

Yes, if the difference in genotype doesn't affect the phenotype.

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13y ago

No, the genotype determines the phenotype.

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Q: Can two organisms have different genotypes but the same phenotype?
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Related questions

What might the phenotypes be of two organisms that were found to have different genotypes but the same phenotype?

Phenotypes refer to the visible traits (or characteristics). Genotypes are the underlying causes for those traits. There may be different genotypes that cause the same phenotype. If the observable traits from one individual are the same from another individual, one can say they have the same phenotypes.


Can two horses have the same phenotype but different genotypes?

yes.


How cant two plants that have different genotypes have the same phenotype?

They cannot


How can you have the same phenotype but a different genotype for a trait?

well GG and Gg both produce the same phenotype for a trait GG and Gg are both different kinds of genotypes that make the same phenotype


How can you have the same phenotype but different genotype?

Different genotypes don't always change your phenotypes because of mutations


How can two plants have different genotypes having the same phenotype?

The simplest way that two plants can have different genotypes, but the same phenotype, is if they both have a dominant allele for the same trait. For example, the genotypes Pp and PP, will both produce the phenotype created by P (for example, pink coloured petals). This is because P is dominant to p, and will always be expressed. Other ways that the same phenotype can be created from different genotypes are when the environment affects the traits, or when the trait is controlled by more than one gene.


Describes organisms or genotypes that are homozygous for a specific trait and thus always produce offspring that have the same phenotype for that trait?

True-breeding


Can 2 organisms have different genotypes but the same phenotype?

No. It is possible for the reverse to be true, two organisms can have the same phenotype but a different genotype. This is because the phenotype is what you will see on the outside whereas the genotype is the combination of alleles and since this determines the phenotype, two organisms with the same genotype will have the same phenotype. So, basically, no. Actually 2 organisms can certainly have different phenotypes with the same genotype--this refers to the concept of penetrance. Some people can have the gene for a condition but never show symptoms. An excellent example of this is the disease neurofibromatosis. This disease has very variable penetrance in which a child of an affected parent may show no signs of the disease, but then have a child with a severe form.


How is it possible for individuals to have the same phenotype but different genotypes for a trait?

it is possible beccause you dont always need both


What is a true - breeding plant?

True-breeding is an organisms or genotypes that are homozygous for a specific trait and thus always produce offspring that have the same phenotype for that trait.


How is it possible for two individuals to have the same phenotype but different genotypes for a traits?

it is possible beccause you dont always need both


How is it possible for two individuals to have same phenotype but different genotypes for a trait?

it is possible beccause you dont always need both