What are the genotypic and phenotypic of 2 purple flowers?

What are the genotypic and phenotypic of 2 purple flowers?

A pair of alleles—one from each parent—makes up the genotype for a trait. 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.

What is the probability in percent of the two purple flowers having offspring that have white flowers?

Only offspring with the bb genotype will have the white-flower phenotype. 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. These are the same percentages that Mendel got in his first experiment.

What are the possible genotypes and phenotypes of offspring if Plant A is crossed with a plant that has a genotype of PP?

P is dominant to p, so offspring with either the PP or Pp genotype will have the purple-flower phenotype. Only offspring with the pp genotype will have the white-flower phenotype.

What is the genotype of the purple flowered offspring?

ANS: In the F2 generation, 25% of the offspring have purple flowers. Their genotype is ww.

What is the probability of the plants with purple flowers?

Checking the probability of fusion between the gametes produced by two plants crossed using Punnet Square method, it is seen that 75% plants will have at least one dominant allele (P) and thus will bear purple flowers. Only 25% plants will have recessive allele in homozygous state (pp).

How do you find the percentage of a Punnett square?

Count the total number of boxes in your Punnett Square. This gives you the total number of predicted offspring. Divide the (number of occurrences of the phenotype) by (the total number of offspring). Multiply the number from step 4 by 100 to get your percent.

What is Punnett Square in genetics?

The Punnett square is a table in which all of the possible outcomes for a genetic cross between two individuals with known genotypes are given. In its simplest form, the Punnett square consists of a square divided into four quadrants.

What is the genotype of parents?

Each parent contributes one allele to each of its offspring. Thus, in this cross, all offspring will have the Bb genotype. Each parent contributes one allele to each of its offspring. Thus, in this cross, all offspring will have the Bb genotype.

What is offspring genotype?

An offspring’s genotype is the result of the combination of genes in the sex cells or gametes (sperm and ova) that came together in its conception. One sex cell came from each parent. Sex cells normally only have one copy of the gene for each trait (e.g., one copy of the Y or G form of the gene in the example above).

What kind of plant is this Punnett square?

Punnett Square: Cross Between White-Flowered and Purple-Flowered Pea Plants. This Punnett square shows a cross between a white-flowered pea plant and a purple-flowered pea plant. Can you fill in the missing alleles? What do you need to know about the offspring to complete their genotypes?

What is the genotype of the parent with purple flowers?

Therefore, the parent with purple flowers must have the genotype Bb. When you consider more than one characteristic at a time, using a Punnett square is more complicated. This is because many more combinations of alleles are possible.

How many phenotypes are there in a Punnett square?

A Punnett Square for a tetrahybrid cross contains 256 boxes with 16 phenotypes and 81 genotypes. A third allele for any one of the traits increases the number of genotypes from 81 to 108.

How do you use a Punnett square to predict cross breeding?

Complete the genotypes in the square by filling it in with the alleles from each parent. Since all allele combinations are equally likely to occur, a Punnett Square predicts the probability of a cross producing each genotype. A single trait Punnett Square tracks two alleles for each parent.