No recessive phenotype appears in the F1 generation. This means that both parents cannot have the recessive allele for each trait. Therefore the parental genotypes must be WWdd x wwDD. As a check, this cross produces all individuals with a genotype of WwDd.
What is the F1 generation genotype?
An organism that is homozygous for a specific trait carries two identical alleles at a particular genetic locus. … The offspring of the RRYY x rryy cross, which is called the F1 generation, were all heterozygous plants with round, yellow seeds and the genotype RrYy.
What is the genotypic ratio of the F1 generation?
The phenotypic ratio is 9:3:3:1 whereas the genotypic ratio is 1:2:1:2:4:2:1:2:1.
What is the genotype of the F1 female?
The female had the genotype XHXh, and produced the two gametes seen at the left side of the diagram. The male had the genotype XHY0, and produced the two gametes seen at the right side of the diagram. The genotypes seen in the center of the square represent the possible genotypes of the F1 generation.
What is phenotype example?
Examples of phenotypes include height, wing length, and hair color. Phenotypes also include observable characteristics that can be measured in the laboratory, such as levels of hormones or blood cells.
What trait will not appear in the F1 generation?
The traits that were visible in the F1 generation are referred to as dominant, and traits that disappear in the F1 generation are described as recessive.
Will all F1 offspring have the same genotype?
b) Will all F1 offspring have the same genotype? A: No, they will not.