TT
the possible combination for the F2 are: by example if we have the gene T dominant and t recessive from the father and the same gene Tt from the mother . the gene possible will be TT,Tt,Tt and tt.
A Punnett square is a four-square diagram for showing the probabilities of an offspring to inherit a certain pair of alleles from its parents.For example,___T_ t__T | TT| Tt |t | Tt | tt |The Tt's (representing both parents' genotype) outside the Punnett square tell what the inner four squares will read. The inner squares tell what trait the parents' offspring might have.The Punnett square above shows that the offspring has a 25% chance of inheriting the homozygous dominant trait, 50% chance for heterozygous trait, and 25% for recessive.A Punnett Square takes two genotypes (discriptions of a gene) and determines the likelihood of four possible offspring carrying the genotypes. For example, blue eyes is a recessive gene. In order to have blue eyes, someone must have the genotype bb. The genotype BB or Bb would appear as brown eyes, the dominant trait. A Punnett Square of a blue-eyed organism and a brown-eyed organism (who carries the trait for blue eyes) would result in four potential offspring with the genotypes Bb, Bb, bb, and bb (two offspring have blue eyes and two have brown eyes but carry the blue-eyed trait). Punnett Squares allow scientists to predict POSSIBLE outcomes; they don't necessarily determine the offsprings' genotypes.
Each box contains a different possible outcome in a genetic cross.The boxes in a Punnett's Square represent the possible outcome of breeding two parent organisms to produce offspring. For example, if you breed a tall pea plant (Tt) with another tall pea plant (Tt), the possible genotypic results are 25% TT, 50% Tt, and 25% tt. The possible phenotypic results would be 75% tall and 25% short. The boxes themselves are the possible genotypic outcomes, from which you can deduce the phenotypic outcome.
Capital letters on Punnett Squares represent dominant genes, while lowercase letters represent recessive genes. For example, if the trait "T" is a tall gene and the trait "t" is a short gene. When you get your results (if both parents are heterozygous for tallness, Tt) you get four possible results, 1 TT (homozygous tall), 2 Tt (twice, heterozygous tall Tt), and 1 tt (homozygous short). If there is a dominant gene there, that gene will be displayed. Only if there are two recessive genes will the recessive trait be displayed.
A punnet square. The genotype of one parent is written across the top and the genotype of the other parent is written down the side.XBBBBBBBbBbBbThe genotypes of the offspring (in this case BB or Bb), are filled in by combining the genes of the parents.
a pair of recessive genes
a pair of recessive genes
A Punnett square for two dwarfs would show the possible combinations of alleles for the dwarf trait. Since dwarfs are homozygous for the dwarf allele (dd), the Punnett square would always yield offspring with the genotype dd when crossed with another dwarf. Therefore, the Punnett square for two dwarfs would show all offspring as dwarfs with the genotype dd.
TT x tt
the possible combination for the F2 are: by example if we have the gene T dominant and t recessive from the father and the same gene Tt from the mother . the gene possible will be TT,Tt,Tt and tt.
TT for the homozygous tall parent, tt for the homozygous short parent and Tt for the heterozygous offspring.
The genotypes of the parents that produce a Punnett square represent the alleles they carry for a specific trait. For example, if the trait is eye color, one parent could be homozygous for brown eyes (BB) and the other parent could be heterozygous (Bb). The Punnett square then shows the possible combinations of these alleles in their offspring.
A Punnett square is a four-square diagram for showing the probabilities of an offspring to inherit a certain pair of alleles from its parents.For example,___T_ t__T | TT| Tt |t | Tt | tt |The Tt's (representing both parents' genotype) outside the Punnett square tell what the inner four squares will read. The inner squares tell what trait the parents' offspring might have.The Punnett square above shows that the offspring has a 25% chance of inheriting the homozygous dominant trait, 50% chance for heterozygous trait, and 25% for recessive.A Punnett Square takes two genotypes (discriptions of a gene) and determines the likelihood of four possible offspring carrying the genotypes. For example, blue eyes is a recessive gene. In order to have blue eyes, someone must have the genotype bb. The genotype BB or Bb would appear as brown eyes, the dominant trait. A Punnett Square of a blue-eyed organism and a brown-eyed organism (who carries the trait for blue eyes) would result in four potential offspring with the genotypes Bb, Bb, bb, and bb (two offspring have blue eyes and two have brown eyes but carry the blue-eyed trait). Punnett Squares allow scientists to predict POSSIBLE outcomes; they don't necessarily determine the offsprings' genotypes.
Each box contains a different possible outcome in a genetic cross.The boxes in a Punnett's Square represent the possible outcome of breeding two parent organisms to produce offspring. For example, if you breed a tall pea plant (Tt) with another tall pea plant (Tt), the possible genotypic results are 25% TT, 50% Tt, and 25% tt. The possible phenotypic results would be 75% tall and 25% short. The boxes themselves are the possible genotypic outcomes, from which you can deduce the phenotypic outcome.
True breeding tall plants would be TT and true breeding short plants would be tt, so TT x tt would illustrate the crossbreeding.
True breeding tall plants would be TT and true breeding short plants would be tt, so TT x tt would illustrate the crossbreeding.
True breeding tall plants would be TT and true breeding short plants would be tt, so TT x tt would illustrate the crossbreeding.