What is the genotype of purple?
The genotype of the purple-flowered plant is PP. Since white flowers are recessive, the only possible genotype for a white-flowered plant is pp. As you can see, all of the offspring in Mendel’s first cross had a genotype of Pp. That’s why all of the plants in the p first generation had purple flowers.
How do you identify the genotype of an unknown flower?
The unknown genotype can be determined by observing the phenotypes of the resulting offspring. If crossing the unknown dominant phenotype (PP or Pp genotype) individual with the recessive phenotype individual produces only dominant phenotypes (no recessive), then the unknown individual is homozygous dominant.
How do you determine the genotype of a purple flowering plant?
Explain how you might go about determining the genotype of a purple-flowering plant. First, cross the purple-flowering plant with a white-flowering plant. If the offspring produced by the cross include white-flowering plants, then the plant in question is heterozygous for flower color.
What is the phenotype of a purple flower?
In pea plants, purebred purple flowers have a genotype with two purple alleles, which produces a phenotype of purple petals. Purebred white flowers have a genotype of two white alleles, which displays the white phenotype.
Which flower color is dominant purple or white?
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| Trait | Dominant Expression | Recessive Expression |
|---|---|---|
| Color of flower (P) | Purple | White |
| Form of ripe pods (I) | Inflated | Constricted |
| Color of unripe pods (G) | Green | Yellow |
| Position of flowers (A) | Axial | Terminal |
What percentage of the offspring from this cross are purple white?
Therefore, in this cross, you would expect three out of four (75 percent) of the offspring to have purple flowers and one out of four (25 percent) to have white flowers.
Can two plants with purple flowers produce offspring with white flowers?
Can two plants with purple flowers produce offspring with white flowers? Yes, if both parents are heterozygous for the trait.
Why did the F1 generation showed all flowers to be purple rather than a mix of white and purple flowers?
Mendel discovered that by crossing true-breeding white flower and true-breeding purple flower plants, the result was a hybrid offspring. Rather than being a mix of the two colors, the offspring was purple flowered. The resulting hybrids in the F1 generation all had violet flowers.
What is the result of a cross between homozygous red and homozygous white four o’clock flowers?
Question: A Cross Between Homozygous Red-flowered And Homozygous White-flowered Four O’clock Plants Results In Offspring With Pink Flowers.
Why pink four o’clock flowers is an example of incomplete dominance?
Those pink flowers are a result of incomplete dominance. Cross-pollination between red snapdragons and white snapdragons result in pink when neither the white or the red alleles are dominant. The fruit color of eggplants is another example of incomplete dominance.
What is the phenotype of a heterozygous flower?
Heterozygous means that an organism has two different alleles of a gene. For example, pea plants can have red flowers and either be homozygous dominant (red-red), or heterozygous (red-white). If they have white flowers, then they are homozygous recessive (white-white). Carriers are always heterozygous.
What does heterozygous look like?
If the two versions are different, you have a heterozygous genotype for that gene. For example, being heterozygous for hair color could mean you have one allele for red hair and one allele for brown hair. The relationship between the two alleles affects which traits are expressed.
How can you tell the difference between heterozygous and homozygous?
Homozygous and Heterozygous Basics The difference between these traits is: Homozygous traits have two copies of the same allele. Heterozygous traits have one dominant allele and one recessive allele.
What is heterozygous trait?
​Heterozygous Heterozygous refers to having inherited different forms of a particular gene from each parent. A heterozygous genotype stands in contrast to a homozygous genotype, where an individual inherits identical forms of a particular gene from each parent.
What does epistasis influence?
Originally, the term epistasis specifically meant that the effect of a gene variant is masked by that of a different gene. Epistasis has a great influence on the shape of evolutionary landscapes, which leads to profound consequences for evolution and for the evolvability of phenotypic traits.