Can people have identical phenotypes?

Everyone has a unique phenotype — even identical twins. For most people, your genotype is unique, and even if you’re an identical twin you may be subject to different environmental influences and experiences than your twin; as a result, your phenotype will be different.

Can people have the same phenotype?

The answer is yes, two different genotypes can result in the same phenotype.

Are phenotypes the same?

The sum of an organism’s observable characteristics is their phenotype. A key difference between phenotype and genotype is that, whilst genotype is inherited from an organism’s parents, the phenotype is not. Whilst a phenotype is influenced the genotype, genotype does not equal phenotype.

How is it possible for cells to be genetically identical but have different phenotypes?

This is because all cells in the body have the same genome but do not have the same epi-genome which controls gene expression. This will make cells to have different gene expression profiles which eventually will make cells to take different fates.

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Can the same species have different phenotypes?

An organism’s phenotype results from two basic factors: the expression of an organism’s genetic code, or its genotype, and the influence of environmental factors. … When two or more clearly different phenotypes exist in the same population of a species, the species is called polymorphic.

Do identical twins have the same phenotype?

Identical twins share the same genotype, since their genomes are identical; but they never have the same phenotype, although their phenotypes may be very similar.

Can you have different phenotypes but the same genotype?

Different genotypes can produce the same phenotype. Different genotypes can produce the same phenotype.

Can siblings have different genotypes?

X and Y chromosome differences mean that brothers and sisters can never have identical genotypes. However, brothers have the same DNA on their Y chromosomes.

Can twins have different genotypes?

About one-third of twins are monozygotic twins. … The result is dizygotic or fraternal twins. These two individuals share the same amount of genetic material as would any two children from the same mother and father. In other words, they possess a different genotype and phenotype.

Why do genetically identical twins have different phenotypes?

This uniqueness is a result of the interaction between our genetic make-up, inherited from our parents, and environmental influences from the moment we are conceived. … As a result, identical twins share identical DNA but may show differences in their phenotype due to environmental factors.

Why can siblings have different phenotypes?

At first it might seem like kids from the same parents should look alike. … But brothers and sisters don’t look exactly alike because everyone (including parents) actually has two copies of most of their genes. And these copies can be different. Parents pass one of their two copies of each of their genes to their kids.

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Can phenotypic plasticity evolve?

If the optimal phenotype in a given environment changes with environmental conditions, then the ability of individuals to express different traits should be advantageous and thus selected for. Hence, phenotypic plasticity can evolve if Darwinian fitness is increased by changing phenotype.

Why do humans have different phenotypes?

Genetic variation in humans may mean any variance in phenotype which results from heritable allele expression, mutations, and epigenetic changes. While human phenotypes may seem diverse, individuals actually differ by only 1 in every 1,000 base pairs and is primarily the result of inherited genetic differences.

Is TT recessive?

An organism can be either homozygous dominant ( TT ) or homozygous recessive ( tt ). If an organism has two different alleles ( Tt ) for a certain gene, it is known as heterozygous (hetero- means different). Phenotype is a way to describe the traits you can see.

How many different phenotypes are there?

There are three alleles involved, A, B, and O, and six possible genotypes: AA, BB, OO, AB, AO, and BO. The various genotypes result in four different phenotypes or blood types: A, B, O, and AB. Individuals have blood type A if their genotypes are AA or AO.

How can two organisms have the same phenotype but different genotypes quizlet?

The combination of alleles in the offspring. … The masking of recessive alleles can result in organisms with the same phenotype but different genotypes. Organisms with two dominant alleles (homozygous dominant and one recessive allele (heterozygius).