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Dominant alleles are expressed, even if a recessive allele is also present. In the notation used, a capital letter means a dominant allele - therefore the presence of a P (in either PP or Pp) means the organism will display the trait P creates.

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11y ago
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9y ago

G is dominant gene and g is a recessive gene. The same genotype is shown in GG and Gg. Only gg will show the g phenotype.

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8y ago

This is because they all have at least one dominant allele, P.

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Q: How can an organism with a genotype Gg could have the same phenotype as an organism with the genotype GG?
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Can two organisms have different genotypes but the same phenotype?

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....


If two genes in a gene pair are for the same trait what will that trait be?

The question should be "If two alleles for a gene are the same, what phenotype will the organism have?" Answer: If the two alleles are for the dominant phenotype, the organism will exhibit the dominant phenotype. If the two alleles are for the recessive phenotype, the organism will have the recessive phenotype.


How can two plants that have different genotype have the same phenotype?

No they do not. Say for example we are looking at the the colour of pea plants where R represents the allele for the colour red and, and the other allele r represents green. The plant will be red with the genotype RR AND Rr which are different genotypes.


Name two factors that determine the phenotype of a trait?

genes


What is phenotypic variation?

Phenotype variation is slight variations in a phenotype that are caused by the expression of an organism's genes or the influence of environmental factors. A species can have several different phenotypes within it.

Related questions

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.


When genetics refer to the physical characteristics of an organism they are talking about its what?

Phenotype. The physical expressed characteristics of an organisms genotype is known as its phenotype. Two organisms may have the same phenotype, but different genotype depending on the dominate or recessive genes present. Just remember physical=pheno.


Can two organisms have different genotypes but the same phenotype?

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....


Can you have the same genotype but different phenotype?

yes


How can two organisms have the same phenotype but different genotype?

One organism is heterozygosis, the other is homozygous.


What is the difference between genotype and phenotype and give examples?

A genotype is the actual genetic coding for an organism A phenotype is the physical appearance For example, let's say BB or Bb is the coding for black hair. BB/Bb is the genotype, and the black hair is the phenotype


What was the genotype of the offspring that did not share the parent's phenotype?

The genotype of the offspring that had the same phenotype as the parents is rr or wrinkled. The phenotype for the seed shape of both parent plants is round.


How are an individual's genotype and phenotype different?

The genotype of an organism is the group of characteristics derived from a combination of heredity and environmental factors. Genotype is based on genetic factors only. phenotypes are the genes that an organism carries. For example, the gene for blue eyes could be b and the gene for brown eyes could be B. Bb is a genotype. Phenotype is the trait that show up. Since brown eyes are dominant, the phenotype of Bb would be brown eyes.


Are phenotype and genotype traits the same?

Phenotype and genotype traits don't always have to be the same. Phenotype is the physical characteristics and genotype is the genetic makeup. For example a pea plant can have the genotype of TT and look tall while another plant can have a genotype of Tt and also look tall (T= dominant trait; t= recessive trait.)


What is are phenotypes and genotypes?

Phenotype, This is the "outward, physical manifestation" of the organism Genotype, This is the "internally coded, inheritable information"


How can a genotype change a phenotype?

no not always due to some phenotypes having more than one gene sequence that affects it, eg; the base sequence for a certain enzyme's synthesis could be TTT but by substituting a T with a C to make TTC in mutation could still be a code for the same enzyme...


What phenotype does an individual with a homozygous recessive genotype exhibit?

For what trait? Phenotype means the way in which a gene is expressed ie hair colour, kidney function, ear shape. Homozygous means that both genes for that trait are the same. A recessive gene is one that would not be the phenotype if there was a dominant gene paired with it. So the individual has genes for a trait that are the same, and thus expressed, but they wouldn't be if they had only one of that gene.