What is the genotype RR?

The (RR) genotype is homozygous dominant and the (rr) genotype is homozygous recessive for seed shape. … About one-fourth will be homozygous dominant for round seed shape (RR), half will be heterozygous for round seed shape (Rr), and one-fourth will have the homozygous recessive wrinkled seed shape (rr).

What is the genotype ratio of RR?

Your genotypic ratio is 25% (RR), 50% (Rr), and 25% (rr). The phenotypic ratio is also the same in this case, with 25% red (RR), 50% pink (Rr), and 25% white (rr). PROBLEM 3. You know that the possession of claws (WW or Ww) is dominant to lack of claws (ww).

What would the phenotype be for RR?

E.g. RR=Red, Rr=Pink, and rr=white ▪ Co-dominance: Both alleles contribute to the phenotype. Offspring will have combination of two alleles.

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What will be the genotypic ratio of the cross between RR and RR?

1 : 2 : 1.

What is the genotype for black chickens?

The black color is represented by allele B and white color by allele W , as neither of these allele can dominate over the other. On mating a black chicken with white chicken, the offsprings will inherit B allele from black parent and W allele from white parent. The genotype of offsprings will be BW.

How do you find the genotype ratio?

To find the genotypic ratio, count the number of times each combination appears in the grid, starting in the upper left square. The example in Figure 1 below is crossing alleles for just one trait, flower color. Larger Punnett squares are used to calculate genotypic ratios for more than one trait as shown in Figure 2.

What is genotype example?

Genotype examples

A gene encodes eye color. … If the child inherits two different alleles (heterozygous) then they will have brown eyes. For the child to have blue eyes, they must be homozygous for the blue eye allele.

What is the genotypic ratio of DD DD?

Mendel’s Monohybrid Crosses Thus, they produce four kinds of zygotes: DD, Dd, dD, and dd Because of dominance, three of these genotypes have the same phenotype Thus, in the next generation, called the F2, the plants are either tall or dwarf, in a ratio of 3:1.

When crossing parents with genotypes RR and RR What will be the percentage of the genotypes of the offspring?

1 : 1 : 1.

What will be the ratio of offspring in a cross between the red flowered?

1 : 2 : 1.

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How many traits are being considered in a Dihybrid cross?

A dihybrid cross describes a mating experiment between two organisms that are identically hybrid for two traits.

What is the genotype for white chicken?

2. In some chickens, the gene for feather color is controlled by codominance. The allele for black is B and the allele for white is W. The heterozygous phenotype is known as erminette.

What is the genotype of a red Snapdragon?

We are told that the genotype of red snapdragons is CR CR. The C means color and the R means red. Remember, the set of alleles an organism possesses for a characteristic is their genotype.

When chickens with splashed white feathers are crossed?

When chickens with splashed white feathers are crossed with black-feathered birds, their offspring are all slate blue (Blue Andalusian).