What is the expected genotype for the F1 generation?
All of the F1 generation plants will have the genotype of Ss (heterozygous), and all will be spherical seeded.
What is the expected ratio of phenotypes among the F1 offspring?
In this question, the offspring phenotypes have a ratio of roughly 1:1:1:1. Since there are F1 offspring that are homozygous recessive for both traits, the white-disk parent must have carried the recessive allele for each trait.
What is the probability that a gamete produced by a heterozygous plant will have the recessive allele?
50%. When a heterozygous plant produces gametes, there are two types of gametes. One type of gametes contains a dominant allele and the other contains a recessive allele.
What are the genotypes of F1?
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.
How do you find the F1 generation?
The initial generation is given the letter “P” for parental generation. The first set of offspring from these parents is then known as the F1 generation. The F1 generation can reproduce to create the F2 generation, and so forth.
Why would all of the F1 generation have yellow phenotypes?
Assuming that both parent plants in the diagram below are homozygous, why would all of the f1 generation have yellow phenotypes? Since the recessive allele is green, only plants that are homozygous green for this trait will have a green phenotype. The homozygous yellow and the heterozygous ones will all be yellow.
How will you identify that F1 hybrid is homozygous or heterozygous?
In a test cross, deliberate crossing over is performed between the [{{F}_{1}}] hybrid and the homozygous recessive organism or parent. The resulting progeny confirms whether the [{{F}_{1}}] hybrid is homozygous or heterozygous. This cross considers the inheritance of a single trait.
Which genotype gives the yellow phenotype?
YY
YY is the homozygous dominant genotype (2 Y alleles). The phenotype of this genotype is yellow seed color. Yy is the heterozygous genotype (one dominant allele, one recessive allele). The phenotype of this genotype is yellow seed color.
What is F1 in Punnett Square?
Represented by letter N (meaning they are haploid-contain half the chromosomes ▪ P generation: The parental generation (Usually the first one in a genetic cross) ▪ F1 generation: The first generation of offspring from P generation (means first filial: Latin for “son”) ▪ F2 generation: The second generation of offspring …
