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How will you calculate the phenotype ratio of a cross between dihybrid F1 plants that are heterozygous for 2 dominant traits?
Wiki User
∙ 13y ago
Using a Punnett square, you can calculate the genotype and phenotype of two dihybrid plants.
For example, if you have two heterozygous individuals for two dominant traits (we'll pretend the genotype is YyRr), put them into a Punnett square, and you'll get these results:
YYRR: 1, YYRr: 2, YYrr: 1
YyRR: 2, YyRr: 4, Yyrr: 2
yyRR: 1, yyRr: 2, yyrr: 1
Phenotypes expressed:
Dominant for both traits: 9/16
Dominant for trait 1: 3/16
Dominant for trait 2: 3/16
Recessive for both traits: 1/16
Therefore, the ratio would be 9:3:3:1
Wiki User
∙ 13y ago
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What is the probability of obtaining a dominant phenotype from self-fertilization of a heterozygous individual is?
75%
What is similar because the heterozygous phenotype is different from the homozygous dominant phenotype?
incomplete dominance
What is the differences between homozygous dominant and homozygous recessive and heterozygous?
A homozygous dominant genotype means that both alleles for a trait are dominant. A heterozygous genotype means that one allele is dominant and the other is recessive. A heterozygous genotype will express the dominant phenotype, not the recessive phenotype.
What are Traits of heterozygous women?
This is far too broad a question. Any phenotype that is dominant can be seen from either a heterozygous or homozygous individual.
What is an organism that is heterozygous for two traits?
An organism that is heterozygous for two traits means that it contains both the dominant allele and the recessive allele for both of the traits in question. For example, take a plant that produces peas. The gene that produces yellow seeds (denoted Y) is dominant, the gene for green seeds (y) is recessive. The gene that produces round seeds is dominant (R), the gene for wrinkled seeds (r) is recessive. So if this organism was heterozygous for both traits its genotype would be: Yy/ Rr Which means it has the allele for yellow seeds and the allele for green seeds (trait one), and also has the allele for round seeds and the allele for wrinkled seeds (trait two). Its phenotype (the traits it displays) will be yellow round seeds, as these are the dominant traits.
What Alleles that display equal power in determining a phenotype?
Homozygous dominant and heterozygous both are a dominant phenotype.
What is a dominant alle?
The dominant allele is the one that determines the phenotype in a heterozygous individual.
What is a alle?
The dominant allele is the one that determines the phenotype in a heterozygous individual.
What is the phenotype of heterozygous?
it would be whatever the dominant phenotype is... heterozygous would mean having Gg so if G is green and g is white you would have a green plant if the genotype is heterozygous codominance
What is the probability of obtaining a dominant phenotype from self-fertilization of a heterozygous individual is?
75%
Is it easier to analyze genotype by observing phenotype in organisms with complete dominance or in organisms with incomplete dominance?
It is easier to analyze genotype by observing phenotype in organisms with incomplete dominance (also known as codominance), because in incomplete dominance the individual will show a specific phenotype for each situation, whether it is homozygous dominant, heterozygous, or homozygous recessive. For example, in flowers, such as the ones that Mendel studied, a homozygous dominant flower will be red, a homozygous recessive flower will be white, and a heterozygous flower will be pink. In complete dominance, a heterozygous will only express the dominant phenotype, as opposed to incomplete dominance, in which a heterozygous individual will express a phenotype that is representative of both of the dominant and recessive traits. Because heterozygous individuals in complete dominance express the dominant phenotype, it is hard to determine whether the genotype is homozygous dominant or heterozygous for the trait. Hope this helps!
What will happen when a Heterozygous with dominant phenotype self fertilizes?
Heterozygous dominant.D = dominantd = recessiveSame as out breeding for cross with other heterozygous dominant.Dd X DdDDDdDddd
What is similar because the heterozygous phenotype is different from the homozygous dominant phenotype?
incomplete dominance
And are similar because the heterozygous phenotype is different from the homozygous dominant?
Condominance and Incomplete Dominance.
What is the differences between homozygous dominant and homozygous recessive and heterozygous?
A homozygous dominant genotype means that both alleles for a trait are dominant. A heterozygous genotype means that one allele is dominant and the other is recessive. A heterozygous genotype will express the dominant phenotype, not the recessive phenotype.
What are Traits of heterozygous women?
This is far too broad a question. Any phenotype that is dominant can be seen from either a heterozygous or homozygous individual.
What is crossing a homozygous dominant or homozygous recessive with a heterozygous?
There is a 50% chance of a homozygous dominant and a 50% chance of a heterozygous.
