What pairs of genotypes result in the same phenotype?

Which genotypes result in the same phenotype?

It is also tall. The answer is yes, two different genotypes can result in the same phenotype. Remember, the recessive phenotype will be expressed only when the dominant allele is absent, or when an individual is homozygous recessive (tt) (Figure below).

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.

What are 3 examples of genotype?

Examples of Genotype:

  • Height. For an individual’s gene makeup there is tall variety (T) and there is short variety (s). T and s are called the alleles. …
  • Freckles or no freckles. Again the information that is passed from parent to child is carried in the cell of the genotype. …
  • Lactose intolerance.

How can one phenotype result from more than one genotype?

The expression of an organism’s genotype produces its phenotype. The phenotype refers to the organism’s characteristics, such as purple or white flowers. As you can see from Table above, different genotypes may produce the same phenotype. For example, BB and Bb genotypes both produce plants with purple flowers.

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Are phenotype and genotype ratios the same?

Genotype is the genetic constitution of an individual whereas phenotype is the physical appearance or expression of a specific trait. … So, genotypic ratio and phenotypic ratio are the two types of genetic ratios used to express the genotype and the phenotype of offspring from a genetic cross.

Why don t similar genotypes produce the same phenotype?

Why don’t similar genotypes always produce the same phenotype? Animals display different phenotypes dependent on diet, not genotype. … the allele’s frequency should not change from one generation to the next, but its representation in homozygous and heterozygous genotypes may change.

How do different genotypes result in different phenotypes?

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. The phenotype is influenced by the genotype and factors including: Epigenetic modifications.

How could two individuals with the exact same genotype identical twins have a different phenotype?

Identical or monozygotic twins occur when a single egg is fertilised to form 1 zygote that divides into 2 separate embryos. As a result, identical twins share identical DNA but may show differences in their phenotype due to environmental factors.

What is the AA genotype?

The term “homozygous” is used to describe the pairs “AA” and “aa” because the alleles in the pair are the same, i.e. both dominant or both recessive. In contrast, the term “heterozygous” is used to describe the allelic pair, “Aa”.

Is BB genotype or phenotype?

The physical appearance of the genotype is called the phenotype. For example, children with the genotypes ‘BB’ and ‘Bb’ have brown-eye phenotypes, whereas a child with two blue-eye alleles and the genotype ‘bb’ has blue eyes and a blue-eye phenotype.

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What phenotypic ratio is produced between a cross of AA & AA?

an expected phenotypic ratio of 3:1 among “A” and “a” phenotypes. Co-dominant molecular alleles typically produce a 1:2:1 ratio of “A”, “Aa”, & “a” phenotypes. This produces charactertistic genotypic and phenotypic ratios. 7.

Which type of dominance occurs when the heterozygote has the same phenotype as one of the homozygotes?

Incomplete dominance and codominance

The results of Mendel established that genes can exist in two alternate forms (i.e., one dominant and other recessive). The dominant allele expresses the same phenotypic effect in heterozygotes as in homozygotes (i.e., Aa or AA are phenotypically similar).