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In crossing a homozygous recessive with a heterozygote what is the chance of getting a homozygous recessive phenotype in the F1 generation?
Wiki User
∙ 6y ago
1/2 or 50%. The homozygous recessive gentoype contains two recessive alleles for the gene for a trait. So the homozygous recessive individual can pass on only recessive alleles to an offspring. The heterozygous individual has one dominant and one recessive allele for the gene for a trait. So the heterozygous individual can pass on either a dominant or a recessive allele to an offspring. So if an offspring inherits a recessive allele from the heterozygous parent, along with the recessive allele from the homozygous recessive parent, it will have the homozygous recessive genotype and phenotype.
Wiki User
∙ 6y ago
The chance of getting a homozygous recessive phenotype in the F1 generation would be 50%, as each offspring has a 50% chance of inheriting the recessive allele from the heterozygote parent.
Wiki User
∙ 10y agoThere is a 50% probability that the offspring from a homozygous recessive parent and a heterozygous parent will itself be homozygous recessive.
Wiki User
∙ 13y ago50%
Wiki User
∙ 14y agoone half
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True or false the phenotype of the herozygote is intermediate of for incomplete dominance?
True. In incomplete dominance, the heterozygote exhibits an intermediate phenotype that is a blend of the two homozygous phenotypes. This is different from complete dominance, where the dominant allele completely masks the expression of the recessive allele in the heterozygote.
What is the ONLY genotype that can produce a recessive phenotype?
The only genotype that can produce a recessive phenotype is homozygous for the recessive allele (aa). This means that both copies of the gene are the recessive allele, resulting in the expression of the recessive trait.
Why is it not necessary when the dominant and recessive traits are known to use the term homozygous when referring to the genotype of an individual that has a recessive phenotype?
When the dominant and recessive traits are known, using the term "homozygous" for the recessive phenotype is redundant because it implies that both alleles are the same (rr for a recessive phenotype). It is clear that the individual is homozygous for the recessive allele by observing their phenotype.
What is the phenotype of a flower in a pea plant that is homozygous recessive?
The phenotype of a pea flower in a plant that is homozygous recessive for a specific trait will show the recessive trait. This means that the flower will display the characteristic associated with that recessive allele.
What phenotype is produce by each of the following genotypes?
Genotype: AA - The phenotype is homozygous dominant, exhibiting the dominant trait. Genotype: Aa - The phenotype is heterozygous, exhibiting the dominant trait. Genotype: aa - The phenotype is homozygous recessive, exhibiting the recessive trait.
True or false the phenotype of the herozygote is intermediate of for incomplete dominance?
True. In incomplete dominance, the heterozygote exhibits an intermediate phenotype that is a blend of the two homozygous phenotypes. This is different from complete dominance, where the dominant allele completely masks the expression of the recessive allele in the heterozygote.
What is the ONLY genotype that can produce a recessive phenotype?
The only genotype that can produce a recessive phenotype is homozygous for the recessive allele (aa). This means that both copies of the gene are the recessive allele, resulting in the expression of the recessive trait.
Why is it not necessary when the dominant and recessive traits are known to use the term homozygous when referring to the genotype of an individual that has a recessive phenotype?
When the dominant and recessive traits are known, using the term "homozygous" for the recessive phenotype is redundant because it implies that both alleles are the same (rr for a recessive phenotype). It is clear that the individual is homozygous for the recessive allele by observing their phenotype.
What is the probability that the offspring of a homozygous dominant individual and a homozygous recessive individual exhibit the dominant phenotype?
Given those conditions, the offspring have a 50% chance of demonstrating the dominant phenotype and a 50% chance of demonstrating the recessive phenotype.
What is the phenotype of a flower in a pea plant that is homozygous recessive?
The phenotype of a pea flower in a plant that is homozygous recessive for a specific trait will show the recessive trait. This means that the flower will display the characteristic associated with that recessive allele.
In the mendels experiment why did traits show up in the f2 generation that were not present in the f1 generation?
All of the F1 generation are heterozygous, therefore 100% exhibit the dominant phenotype. The F2 generation has a ratio of 1 homozygous dominant: 2 heterozygous: 1 homozygous recessive. This results in a phenotypic ratio of 3 dominant: 1 recessive.
In Mendels experiment why did traits show up in F2 generation that were not present in the F1 generation?
All of the F1 generation are heterozygous, therefore 100% exhibit the dominant phenotype. The F2 generation has a ratio of 1 homozygous dominant: 2 heterozygous: 1 homozygous recessive. This results in a phenotypic ratio of 3 dominant: 1 recessive.
What phenotype is produce by each of the following genotypes?
Genotype: AA - The phenotype is homozygous dominant, exhibiting the dominant trait. Genotype: Aa - The phenotype is heterozygous, exhibiting the dominant trait. Genotype: aa - The phenotype is homozygous recessive, exhibiting the recessive trait.
What is the probaility that the offspring of a homozygous dominant individual and a homozygous recessive individual will exhibit the dominant phenotype?
100 percent.
Term for a genotype in which there are two recessive alleles?
A genotype consisting of two different alleles is a heterozygote.
What term can describe the genotypes of the p generation?
The term "parental genotypes" can describe the genotypes of the P generation in a genetics experiment. These genotypes serve as the initial individuals crossed to produce offspring with specific traits of interest.
Which genotype is used in a test cross?
In a test cross, one individual with a dominant phenotype but unknown genotype is crossed with a homozygous recessive individual. The genotype of the individual with the dominant phenotype can then be inferred based on the phenotypic ratios of the offspring.
