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The F1 (first filial) generation is always 100% heterozygous.
This is because the F1 generation is defined as the offspring of pure-breeding (homozygous) parents carrying different alleles from each other, e.g. AA x aa. All the offspring must be Aa, in other words heterozygous.
A monohybrid cross is a cross between parents who are heterozygous at one locus. For example, consider a locus with two alleles, A and a. A monohybrid cross thus involves parents whose genotypes are both Aa,and is represented this way: Aa X AaThis is the parental generation. We know that 1/4 of the offspring of this cross will not be heterozygous, i.e., will have the aa genotype. Therefore, in a Mendelian monohybrid cross, only the parental generation is always completely heterozygous.
Well, the P-generation, which is the true breed generation or parent is the homozygous dominant and homozygous recessive. Thent he F1 was heterozygous, which resulted in a cross to make tall plants (dominant) and some short plants (recessive)
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Which blood type is always heterozygous?
AB blood type is always heterozygous because it carries both A and B alleles.
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.
Is a monohybrid the second generation of a self- fertilized plant?
No, a monohybrid refers to offspring that result from the cross between two individuals that are heterozygous for a single trait (ex: Aa x Aa). It does not specifically refer to the second generation of a self-fertilized plant. The second generation of a self-fertilized plant would generally involve a mix of homozygous and heterozygous individuals for various traits.
What happens to alleles between the p generation and F2 generation?
Alleles segregate and assort independently during gamete formation, leading to new combinations of alleles in the F1 generation. In the F2 generation, alleles recombine through random assortment and independent assortment, resulting in a variety of different genotypes and phenotypes compared to the P generation.
A homozygous violet flowered pea plant is crossed with a homozygous with flowered pea plant. If the violet color is dominant (V), what is the genotype and phenotype of the F1 generation?
The genotype of the F1 generation will be heterozygous (Vv) and the phenotype will be violet flowered.
Which blood type is always heterozygous?
AB blood type is always heterozygous because it carries both A and B alleles.
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 happens to the alleles between the P generation and the F2 generation?
In the P generation, one parent is homozygous dominant and the other parent is homozygous recessive. In the F1 generation, the product of a cross between the P generation, the offspring are all heterozygous. In the F2 generation, the product of a cross between the F1 generation, the expected result is 1/4 homozygous dominant, 1/2 heterozygous, and 1/4 homozygous recessive.
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 percentage of genotypes would most likely be found in the f1 generation offspring?
If the parent generation consisted of a homozygous dominant parent and a homozygous recessive parent, then the F1 generation would be 100% heterozygous.
Is a monohybrid the second generation of a self- fertilized plant?
No, a monohybrid refers to offspring that result from the cross between two individuals that are heterozygous for a single trait (ex: Aa x Aa). It does not specifically refer to the second generation of a self-fertilized plant. The second generation of a self-fertilized plant would generally involve a mix of homozygous and heterozygous individuals for various traits.
What happens to alleles between the p generation and F2 generation?
Alleles segregate and assort independently during gamete formation, leading to new combinations of alleles in the F1 generation. In the F2 generation, alleles recombine through random assortment and independent assortment, resulting in a variety of different genotypes and phenotypes compared to the P generation.
Why do the genes come back even though they skipped a generation?
Beacause they are dominant and heterozygous and they stay with you even though you may not have the genes
What was the ratio of tail to short plants in the f2 generation of Mendel's experiments?
100% heterozygous pea plants. Showing the dominant trait
A homozygous violet flowered pea plant is crossed with a homozygous with flowered pea plant. If the violet color is dominant (V), what is the genotype and phenotype of the F1 generation?
The genotype of the F1 generation will be heterozygous (Vv) and the phenotype will be violet flowered.
Occurs when the heterozygous condition exists as an intermediate between the two homozygotes?
Incomplete dominance is a genetic scenario where the heterozygous condition results in a phenotype that is intermediate between the two homozygotes. It is seen in traits where neither allele is completely dominant over the other, leading to a blending of traits in the heterozygous individual.
