Can genetically identical offspring show differences in phenotype?

We are all unique. Even monozygotic twins, who are genetically identical, always have some variation in the way they look and act. As a result, identical twins share identical DNA but may show differences in their phenotype due to environmental factors. ...

1. Can genetically identical plants have different phenotypes?
2. Can the same species have different phenotypes?
3. What causes differences in phenotypes?
4. Can the same genotype have different phenotypes?
5. Why do genetically identical twins have different phenotypes?
6. How can two organisms have the same phenotype but different genotypes?
7. Can genotype be determined by phenotype?
8. What causes variation in the phenotypes in offspring?
9. How can variation within a DNA sequence produce different phenotypes?
10. What are the two main factors responsible for phenotypic variation?
11. How can cells have the same genotype but differ in their phenotype?
12. Can identical twins have the same phenotype?
13. What would be some obvious differences that could be observed in identical twins?
14. How can identical twins with identical genetic make up end up looking different to each other?

Can genetically identical plants have different phenotypes?

An organism's genotype is a major (the largest by far for morphology) influencing factor in the development of its phenotype, but it is not the only one. Even two organisms with identical genotypes normally differ in their phenotypes.

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.

What causes differences in phenotypes?

What Causes Phenotypic Variation? As mentioned above, phenotypes can be caused by genes, environmental factors, or both. ... For example, body weight in humans may be influenced by genes but is also influenced by diet. In this case, diet is an example of an environmental factor.

Can the same genotype have different phenotypes?

The same genotype, when raised in different environments results in different phenotypes. Furthermore, different genotypes respond to the same environmental changes differently from each other.

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.

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

Same phenotype but different genotype is possible due to presence of dominant allele. ... A person can have a dominant allele on both the homologous chromosomes (i.e. in double dose) while another person may have single dominant allele and a corresponding recessive allele.

Can genotype be determined by phenotype?

​Phenotype

A phenotype is an individual's observable traits, such as height, eye color, and blood type. The genetic contribution to the phenotype is called the genotype. Some traits are largely determined by the genotype, while other traits are largely determined by environmental factors.

What causes variation in the phenotypes in offspring?

Genetic variation can be caused by mutation (which can create entirely new alleles in a population), random mating, random fertilization, and recombination between homologous chromosomes during meiosis (which reshuffles alleles within an organism's offspring).

How can variation within a DNA sequence produce different phenotypes?

Phenotypic variation occurs when the expression of genes is changed in response to the environment, for instance by the induction or repression of synthesis of particular enzymes.

What are the two main factors responsible for phenotypic variation?

Two types of factors are recognized as contributing to the phenotypic variation in a population, genetic and environmental.

How can cells have the same genotype but differ in their phenotype?

2: Phenotype is determined by the specific genes within a genotype that are expressed under specific conditions. Although multiple cells may have the same genotype, they may exhibit a wide range of phenotypes resulting from differences in patterns of gene expression in response to different environmental conditions.

Can identical twins have the same phenotype?

Monozygotic or identical twins occur when a fertilized egg splits apart in the first two weeks of development. The result is the creation of two separate, but genetically identical offspring. That is, they possess the same genotype and often the same phenotype. About one-third of twins are monozygotic twins.

What would be some obvious differences that could be observed in identical twins?

Some identical twins can have different heights and weights. This is because height and weight are controlled by what you eat as well your DNA. ... This can mean one twin starts getting more to eat even before they are born! Another physical difference between identical twins is their fingerprints.

How can identical twins with identical genetic make up end up looking different to each other?

As a result of the environment, chemicals called “epigenetic marks” attach to the chromosomes and can turn specific genes on or off. So identical twins with identical DNA may have different genes turned on, causing them to look and act differently, and even to develop different diseases such as cancer.