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In a monohybrid cross with one parent homozygous dominant and the other homozygous recessive
The phenotype of the F1 offspring will be 100% that of the parent with the dominant allele.
A cross of two of the F1 offspring will be 75% phenotypically like the dominant allele and 25% will be hommozygous recessive or 3 to 1
Wiki User
∙ 11y ago
Wiki User
∙ 12y ago1:2:1
well, it is true,, yet i have a more details,,,
if you have a monohybrid,,, Aa and that need to be crossed with a monohybrid,, Aa,,,while A allele is dominant over a allele ...so
so the expected is offspring will be segregated into the following...
AA,,,Aa,,AA ==> This is the phenotype of the trait that appear on the individuals
1 2 1 ==> this is the genetic ratio (because it describe the genetic composition of each individual and its ratio or number compared to the total population)
__3__ 1 ==> this is the phenotypic ration (because it describe the overall phenotype of the individual what ever was his genetic composition is)
Note that: AA ==> is a homozygous with a complete dominant phenotype
Aa ==> is a heterozygous with dominant dose from the (A) allele
AA ==> is a homozygous with the recessive complete phenotype of the (a) allele
The phenotypic ratio of a monohybrid cross is usually 3:1. This means that in the offspring, 75% exhibit the dominant phenotype and 25% exhibit the recessive phenotype.
Wiki User
∙ 15y agoMonohybrid Cross Phenotypic ratio: 3:1 Genotypic Ratio: 1:2:1
Wiki User
∙ 14y agophenotypic ratio is 9:3:3:1
genotypic ratio is 1:2:1:2:4:2:1:2:1
Wiki User
∙ 13y agoTypical Phenotypic Ratio for a Dihybrid Cross is 9:3:3:1. The Phenotypic ratio will explain the genotypic ratio when you you solve a Dihybrid Cross.
Wiki User
∙ 13y agomonohybrid f2- 3:1
dihybrid f2: 9:3:3:1
Wiki User
∙ 13y agoyou should have asked them to give you your explanation as well.
Jerry
Wiki User
∙ 11y agoIt is 1:2:1
1 homozygous dominant
2 heterozygous dominants
1 homozygous recessive
Wiki User
∙ 13y ago3:1
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What is a monohybrid ratio?
A monohybrid ratio refers to the genotypic and phenotypic ratio seen in the offspring of a genetic cross involving only one trait. For example, in a monohybrid cross between two heterozygous individuals (Aa x Aa), the genotypic ratio among the offspring would be 1:2:1 for AA:Aa:aa, and the phenotypic ratio would be 3:1 for the dominant trait to the recessive trait.
Why does the expected genotypic ratio often differ from the expected phenotypic ratio from monohybrid cross?
Because in heterozygotes, both alleles are transcribed and translated.
What kind of phenotype ratio would you expect from a mono-hybrid cross?
In a mono-hybrid cross, you would expect a phenotypic ratio of 3:1. This means that you would expect 3 individuals with one phenotype and 1 individual with a different phenotype.
What is the importance of a 9331 ratio in a monohybrid cross?
The phenotypic ratio expected from a monohybrid cross between heterozygotes is 3:1 (assuming complete dominance), with the genotypic ratio being 1:2:1. So, using tall = T, short = t and R = red, r = white as an example. A monohybrid cross of Tt X Tt would be expected to produce 3 tall plants and 1 short plant (phenotypic ratio 3:1), which would be 1 TT, 2 Tt and 1 tt (genotypic ratio 1:2:1). A dihybrid cross of heterozygotes is expected to produce a phenotypic ratio of 9:3:3:1. So the cross of TtRr X TtRr would be epected to have: 9 tall red, 3 tall white, 3 short red and 1 short white (phenotypic ratio) This is because each parent has 4 possible combinations of gametes (TR, Tr, tR and tr). There are therefore 16 combinations of gametes, providing a 9:3:3:1 phenotypic ratio. Both of these are probably best visualised using a punnett square (see link below).
What is the phenotypic ratio for a F1 cross?
The phenotypic ratio for a monohybrid cross in the F1 generation is typically 3:1. This means that three-quarters of the offspring will exhibit one phenotype, while one-quarter will exhibit a different phenotype. This ratio is based on Mendelian inheritance patterns.
What is the phenotypic ratio of the F-2 generation of the monohybrid cross?
1 Red : 2 Pink : 1 White
What is a monohybrid ratio?
A monohybrid ratio refers to the genotypic and phenotypic ratio seen in the offspring of a genetic cross involving only one trait. For example, in a monohybrid cross between two heterozygous individuals (Aa x Aa), the genotypic ratio among the offspring would be 1:2:1 for AA:Aa:aa, and the phenotypic ratio would be 3:1 for the dominant trait to the recessive trait.
Why does the expected genotypic ratio often differ from the expected phenotypic ratio from monohybrid cross?
Because in heterozygotes, both alleles are transcribed and translated.
A 1 to 2 to 1 phenotypic ratio in the F2 generation of a monohybrid cross is a sign o?
A 1 to 2 to 1 phenotypic ratio in the F2 generation of a monohybrid cross is a sign of incomplete dominance, where the heterozygous genotype results in an intermediate phenotype. This ratio is typical when one allele is not completely dominant over the other, leading to a blended or mixed phenotype in heterozygous individuals.
What kind of phenotype ratio would you expect from a mono-hybrid cross?
In a mono-hybrid cross, you would expect a phenotypic ratio of 3:1. This means that you would expect 3 individuals with one phenotype and 1 individual with a different phenotype.
What is the actual ratio of the phenotypic characteristics red 93 white 36?
The ratio of red to white phenotypic characteristics is approximately 93:36, which simplifies to 31:12 when divided by their greatest common factor of 3.
What is the importance of a 9331 ratio in a monohybrid cross?
The phenotypic ratio expected from a monohybrid cross between heterozygotes is 3:1 (assuming complete dominance), with the genotypic ratio being 1:2:1. So, using tall = T, short = t and R = red, r = white as an example. A monohybrid cross of Tt X Tt would be expected to produce 3 tall plants and 1 short plant (phenotypic ratio 3:1), which would be 1 TT, 2 Tt and 1 tt (genotypic ratio 1:2:1). A dihybrid cross of heterozygotes is expected to produce a phenotypic ratio of 9:3:3:1. So the cross of TtRr X TtRr would be epected to have: 9 tall red, 3 tall white, 3 short red and 1 short white (phenotypic ratio) This is because each parent has 4 possible combinations of gametes (TR, Tr, tR and tr). There are therefore 16 combinations of gametes, providing a 9:3:3:1 phenotypic ratio. Both of these are probably best visualised using a punnett square (see link below).
What is the phenotypic ratio for a F1 cross?
The phenotypic ratio for a monohybrid cross in the F1 generation is typically 3:1. This means that three-quarters of the offspring will exhibit one phenotype, while one-quarter will exhibit a different phenotype. This ratio is based on Mendelian inheritance patterns.
What is the phenotype ratio of a cross between a heterozygous male and female?
The phenotype ratio will depend on the specific genetic traits being studied. In general, a cross between two heterozygous individuals is expected to result in a 3:1 phenotypic ratio, with three-quarters of the offspring displaying the dominant phenotype and one-quarter displaying the recessive phenotype.
What is a phenotypic ratio?
A phenotypic ratio is the ratio of different observable traits or characteristics in a population. It is typically based on the expression of genes and can be influenced by various factors such as dominance, recessiveness, and genetic recombination. Phenotypic ratios are used to predict the possible outcomes of mating between individuals with known genotypes.
What is a cross called that involves one trait?
It is a dihybrid cross.An example: if you cross garden peas having round yellow seeds with others having wrinkled green seeds, that is a dihybrid cross, because you are tracking both seed shape and seed color.
Why does the expected genotypic ratio often differ from the expected genotypic ratio resulting from a monohybrid cross?
becouse you touch yourself at night.
