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When two pea plants with TT genotypes are crossed-bred how many short tt plants will there be in the new generation?
Wiki User
∙ 10y ago
If tall (T) is dominant and small (t) is recessive, and both are homozygous, they would all be tall. (100% tall, heterozygous.) If the tall is heterozygous, it would be 50% tall heterozygous and 50% short heterozygous.
Wiki User
∙ 15y ago
Wiki User
∙ 9y agoThe possibilities are TT, Tt, Tt, tt, so the possibility of an offspring being short is 25%.
Wiki User
∙ 10y agoYes. Each cross is an independent event and is not dependent on any previous cross.
Wiki User
∙ 13y agoUsing the punnett square, the result comes out as:
- 25% TT
- 50% Tt
- 25% tt
Wiki User
∙ 13y agoYes. tt = 25%
Tt x Tt = TT: Tt: Tt: tt (1:2:1)
Wiki User
∙ 10y agoNone, 100% of the new generation will also be TT or tall plants.
Wiki User
∙ 8y ago25% TT - homozygous dominant
50% Tt - heterozygous dominant
25% tt - homozygous recessive
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In the P generation a tall plant was crossed with a short plant No F1 plants were short Short plants reappeared in the F2 generation because?
A cross between members of the F1 generation (Tt x Tt), results in the genotypic ratio of 1TT:2Tt:1tt genotypes in the F2 generation. Because the tall allele is dominant, the phenotypic ratio would be 3 tall:1 short in the F2 generation.
What wos the of tall to short plants in the F2 generation of Mendel's experiment?
out of total 1064 plants in f2 generation,787 plants were tall & 277 plants were dwarf.Means 3:1 ratio was obtained.
What was the result of Mendel's experiments in the F2 generation?
There was a 3:1 ratio of tall plants to short plants.
How do you get the f2 generation from the f1 generation?
taken from a science textbook- Scientists today call these parent plants the parental generation, or P generation. The offspring from this cross are the first filial generation or the F1 generation. The word filial comes from filila and flilius, the Latin words for daughter and son. When the plants in the F1 generation were full-grown, Mendel allowed them to self-pollinate. Surprisingly, the plants in the F2 gneration were a mix of tall AND short plants. The shortness trait had reappeared even though none of the F2 parent plants were short. Mendel counted the tall and short plants. About three fourths of the plants were tall, while one fourths were short.
What was the ratio of tall to short plants in the F2 generation mendel experiments?
3.1
What are the genotypes of the short plants in the P1 and F2 generation?
P1: tt F2: tt
In the p generation a tall plant was crossed with a short plant. Short plants reappeared in the f2 generation because?
A cross between members of the F1 generation (Tt x Tt), results in the genotypic ratio of 1TT:2Tt:1tt genotypes in the F2 generation. Because the tall allele is dominant, the phenotypic ratio would be 3 tall:1 short in the F2 generation.
What are the genotypes and phenotypes of a cross between a true breeding tall and a true breeding short pea plant?
The results of the first generation were 3 tall plants and 1 short plant, indicating that some activity was making the tall plants more likely, but not exclusively so.
Purebread tall plants are crossed with what plants?
Using a punnett square you get the results of TT, TT, Tt, Tt. Key= T-tall t-short It's going to be tall but can have different genotypes
In the P generation a tall plant was crossed with a short plant No F1 plants were short Short plants reappeared in the F2 generation because?
A cross between members of the F1 generation (Tt x Tt), results in the genotypic ratio of 1TT:2Tt:1tt genotypes in the F2 generation. Because the tall allele is dominant, the phenotypic ratio would be 3 tall:1 short in the F2 generation.
Which descides the F2 generation in Mendel's experiment?
three times as many tall plants as short plants
What was the f2 generation in mendels experiment?
There were three times as many tall plants as short plants.
What wos the of tall to short plants in the F2 generation of Mendel's experiment?
out of total 1064 plants in f2 generation,787 plants were tall & 277 plants were dwarf.Means 3:1 ratio was obtained.
What was the result of Mendel's experiments in the F2 generation?
There was a 3:1 ratio of tall plants to short plants.
How do you get the f2 generation from the f1 generation?
taken from a science textbook- Scientists today call these parent plants the parental generation, or P generation. The offspring from this cross are the first filial generation or the F1 generation. The word filial comes from filila and flilius, the Latin words for daughter and son. When the plants in the F1 generation were full-grown, Mendel allowed them to self-pollinate. Surprisingly, the plants in the F2 gneration were a mix of tall AND short plants. The shortness trait had reappeared even though none of the F2 parent plants were short. Mendel counted the tall and short plants. About three fourths of the plants were tall, while one fourths were short.
What result did mendel get when he allowed the first-generation plants to self-pollinate?
Gregor Mendel developed the model of heredity that now bears his name by experiments on various charactersitics of pea plants: height (tall vs. Short); seed color (yellow vs. Green); seat coat (smooth vs. wrinkled), etc. The following explanation uses the tall/short trait. The other traits Mendel studied can be substituted for tall and short.Mendel started out with plants that "bred true". That is, when tall plants were self-pollinated (or cross-pollinated with others like them), plants in following generations were all tall; when the short plants were self-pollinated (or cross- pollinated with others like them) the plants in following generations were all short.Mendel found that if true breeding Tall [T] plants are crossed (bred) with true breeding short [t] plants, all the next generation of plants, called F1, are all tall.Next, he showed that self-pollinated F1 plants (or cross- pollinated with other F1 plants) produce an F2 generation with 3/4 of the plants tall and 1/4 short.A. 1/4 of the F2 generation are short plants, which produce only short plants in the F3 generation, if they are self- pollinated (or crossed with other short F2 plants;) these F2 plants breed true.B, 1/4 of the F2 generation (1/3 of the tall plants) are tall plants that produce only tall plants in the F3 generation, if they are self-pollinated; these tall F2 plants breed true.C. 1/2 of the F2 generation (2/3 of the tall plants) are tall plants that produce 1/4 short plants and 3/4 tall plants in the next [F3] generation, if they are self-pollinated. This is the same proportion of tall to short that F1 plants produce.
What was the ratio of the tall to short plants in the F2 generation of Mendel's experiment?
3.1
