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A dihybrid cross between two heterozygotes produces a phenotypic ratio of?
Wiki User
∙ 11y ago
It depends on the genotypes of the parents.
The most common type used is a cross between two heterozygotes, such as RrDd X RrDd, this results in a pheotypic ratio of 9:3:3:1.
This means that you would expect 9 RD : 3 Rd : 3 rD : 1 rd (for phenotype).
Wiki User
∙ 12y ago
Wiki User
∙ 13y agoThat depends on the gametes. The most common is 9:3:3:1
Wiki User
∙ 13y agoA. 1:1
B. 2:1
C. 9:3:3:1
D. 1:2:1
E. 3:1
Correct answer is (C) 9:3:3:1
Wiki User
∙ 14y agoThe phenotypic rationof a dihybrid cross is 9:3:3:1
Wiki User
∙ 12y ago9:3:3:1
Wiki User
∙ 13y ago9:3:3:1
Wiki User
∙ 11y ago3:1
Wiki User
∙ 14y ago9:3:3:1
Wiki User
∙ 13y ago9:3:3:1
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A cross between plants that involves one characteristic?
That would be a dihybrid cross! =D got it right on a quiz!
What is a phenotypic ratio?
A ratio that shows the different outcomes you can get from a genetic cross.A ratio that shows the varied outcomes that results from a genetic cross and is based on physical appearance alone. For example yellow flowers, round seeds, brown hair, green eyes etc.The genetic make up of an organism is called genotype and the external appearance or expression of the genetic make up is called phenotype (Color, height, shape etc.). The ratio indicates the number of heterozygotes and homozygotes with reference to the genotypic ratio and to the number of phenotypes expressed as phenotypic ratio. The concept was given by Sir Gregor Johann Mendel, Father of Genetics who worked on pea plant with reference to 7 different characters. The result obtained for a cross between a single character is called monohybrid cross and the ratio is referred to as monohybrid ratio which is 1:2:1 for genotypic ratio and 3:1 for phenotypic ratio.in the dihybrid cross for the phenotypic ratio it is 9:3:3:1.
What is the difference between phenotypic and genotypic characteristics?
Phenotype is you outside appearance and Genotype is your genes
How does a monohybrid differ from a dihybrid with respect to allele pairs?
monohybrid is a cross between two heterozygous (Aa x Aa), they are usually controlled by different alleles of the same gene. A monohybrid cross compares only one trait. while Dihybrid is a cross between F1 offsprings of two individuals that differ in two traits. Dihybrid croos are often used to test for dominant and recessive genes in two separate characteristics.
What is the phenotype ratio of a cross between a heterozygous male and female?
The phenotypic ratio is a 3:1 ratio.
Cross between organism differing in two characters?
dihybrid crosses
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).
A cross between plants that involves one characteristic?
That would be a dihybrid cross! =D got it right on a quiz!
What is a cross between individuals that have different alleles for the same gene?
Dihybrid cross
What is a phenotypic ratio?
A ratio that shows the different outcomes you can get from a genetic cross.A ratio that shows the varied outcomes that results from a genetic cross and is based on physical appearance alone. For example yellow flowers, round seeds, brown hair, green eyes etc.The genetic make up of an organism is called genotype and the external appearance or expression of the genetic make up is called phenotype (Color, height, shape etc.). The ratio indicates the number of heterozygotes and homozygotes with reference to the genotypic ratio and to the number of phenotypes expressed as phenotypic ratio. The concept was given by Sir Gregor Johann Mendel, Father of Genetics who worked on pea plant with reference to 7 different characters. The result obtained for a cross between a single character is called monohybrid cross and the ratio is referred to as monohybrid ratio which is 1:2:1 for genotypic ratio and 3:1 for phenotypic ratio.in the dihybrid cross for the phenotypic ratio it is 9:3:3:1.
What is the difference between phenotypic and genotypic characteristics?
Phenotype is you outside appearance and Genotype is your genes
In a dihybrid cross between individual with the genotype RRYYand an individual with the genotype rryy all of the offspring with have the genotype?
RrYy
How many phenotypically different types of offspring are possible in a dihybrid cross between two heterozygous individuals?
3
A cross between organisms with the genotypes AaBb and AaBb called?
This is called a dihybrid cross in which both parents are heterogeneous.
How does a monohybrid differ from a dihybrid with respect to allele pairs?
monohybrid is a cross between two heterozygous (Aa x Aa), they are usually controlled by different alleles of the same gene. A monohybrid cross compares only one trait. while Dihybrid is a cross between F1 offsprings of two individuals that differ in two traits. Dihybrid croos are often used to test for dominant and recessive genes in two separate characteristics.
What are the likely phenotypes of these seeds when they germinate?
about one-fourth will be white and three-fourths green since it is similar to a monohybrid cross between heterozygotes
A cross between an individual with orange eyes and green skin and an individual with black eyes and white skin is an example of?
dihybrid
