they can not cross breed.
genotype means genetic make up. it can give the information about the parents wether they were homozygous or heterzygousAnswer (Improved)A genotypic ratio is the proportion of genotypes found in individuals after a cross. For example, consider a cross between two heterozygous individuals for trait A: Aa X AaThe result is a 1:2:1 ratio for the genotypes AA, Aa, and AA respectively. Put another way, if the parents had 100 offspring, 25 would be expected to have the genotype AA, 50 the genotype Aa and 25 the genotype AA.This is hard Good Luck
BbxBb = 25% homozygous BB; 50 % heterozygous Bb, and 25% homozygous recessive bb.
You're looking at a gene which contains 2 alleles (meaning variations of that gene). Let's call it "A."Remember that you get 2 copies of EACH gene (one from mom, one from dad).
In genetics, you can either have a dominant allele (A) or a recessive allele (a). Being homozygous means that you have both of either a dominant or a recessive allele (ie you are either AA or aa). If the trait is a recessive trait, then you need to have it be homozygous recessive in order to express that trait. Hope this was helpful! :-)
A rough-coat is recessive for this trait. Thus a rough-coat is heterozygous and a smooth-coat is homozygous.
A pretty bow
Asuming that the F1 generation is heterozygous for a single trait and that the F2 cross is of 2 F1 offspring. Ex. Aa X Aa the phenotypic ratio is 3:1 dominant to recessive. The genotypic ratio is 1:2:1 AA:Aa:aa.
Asuming that the F1 generation is heterozygous for a single trait and that the F2 cross is of 2 F1 offspring. Ex. Aa X Aa the phenotypic ratio is 3:1 dominant to recessive. The genotypic ratio is 1:2:1 AA:Aa:aa.
A cross between two heterozygous parents (eg. Gg X Gg) would result in a phenotypic ratio of 3 dominant : 1 recessive, and a genotypic ratio of 1GG:2Gg:1gg.GgGGGGggGggg
Phenotypic ratio: 3 D, 1d [3 dominant, 1 recessive] Genotypic ratio: 1DD, 2Dd, 1dd
Math is involved after you complete the punnett square because you find the phenotypic ratio, so that is numbers[while the genotype is letters with dominant and recessive gene alleles]. In the genotype part, you find the genotypic fractions of different matches out of the given number of crosses. For example, if you do four crosses with Aa and Aa in a punnett square, you will have 3/4 dominant A and 1/4 recessive a as the four crosses, which are the genotypic fractions. The phenotypic ratio is 1 dominant pair, 2 heterozygous, and 1 recessive pair, or 1:2:1.
The phenotypic ration in F1 generation will be 3 : 1. Three individuals showing dominant trait and one individual with recessive trait. However, the genotypic ratio will be 1:2:1.That is one homozygous dominant, two heterozygous dominant and one homozygous recessive individuals.
The phenotypic ratio of 2 hybrids would be 3:1 while the genotypic would be 1:2:1. ChaCha on!
1 homozygous dominant: 2 heterozygous: 1 homozygous recessive
If both the individuals are heterozygous dominant then the probability of recessive (homozygous) phenotypic offspring would be 1:4
1:1:1:1:1:1:1:1 ratio is the expected outcome of a heterozygous (BbGgCc) and a homozygous recessive (bbggcc) cross.
All of the F1 generation are heterozygous, therefore 100% exhibit the dominant phenotype. The F2 generation has a ratio of 1 homozygous dominant: 2 heterozygous: 1 homozygous recessive. This results in a phenotypic ratio of 3 dominant: 1 recessive.