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Why did only about one fourth of mendel's f2 plants exhibit the recessive traits?
Wiki User
∙ 12y ago
Because the possible combinations are DD, Dr, rD, and rr. When a dominant gene is present (D), then that gene is selected. The plants only have a one in four chance of getting a rr combo (r being recessive). It must inherit two recessive genes to display that trait.
Wiki User
∙ 14y ago
Wiki User
∙ 13y agoBecause he took two heterozygous trait plants as the parents to make the F2 generation. When completing the punnett square, out of four outcomes only one is both lower case (ex. pp) or in other words homozygous recessive.
Wiki User
∙ 13y agoBecause the possible combinations are DD, Dr, rD, and rr. When a dominant gene is present (D), then that gene is selected. The plants only have a one in four chance of getting a rr combo (r being recessive). It must inherit two recessive genes to display that trait.
Wiki User
∙ 13y agoIt's a lot easier to understand by examining a punnet square. The two parents of the F2 generation contained the genes for a certain trait (in this case pod colour), they were Gg and Gg. Both plants containing both the dominant and recessive traits. The possible outcomes for the gene arrangement are GG, Gg, Gg or gg. Since "G" represents the dominant and "g" the recessive, and the only possible way for the dominant trait to be exhibited is for the plant to contain no dominant genes, the only offspring to exhibit recessive trait will be the plants with gg.
Wiki User
∙ 11y agoTwo true breeders, f1.
AA
aa
All progeny,
Aa
so,
Aa X Aa ( f2 )
Produces.
AA = 1/4
Aa = 1/2
aa = 1/4
=======That's why.
Wiki User
∙ 12y agoBecause I like cheese
Wiki User
∙ 11y agoDominant
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When mendels plants self pollinated what did they produce?
Seeds to raise F1 generation
What was the ratio of tall to short plants in the f2 generation of mendels experiments?
3.1
What is dominant and recessive allele?
A dominant allele is an allele where its phenotype will always be represented when the allele for that gene is present. A recessive allele can be masked by a dominant allele when a dominant and recessive allele are present for the same gene. A recessive allele will only present itself when two recessive alleles for a trait are present.
What are possible explanations for differences in percentages in green and albino corn seeds?
Green is dominant, and albino is recessive. If you cross heterozygous plants, you will end up with about a 3:1 ratio of green to albino.
What was mendels experiment?
pea plants
In which generation were recessive traits in all the plants in mendels experiments?
F1 generation
In which generation were recessive traits visible in a few plants in mendels?
F2 generation
In which generation were recessive traits visible in a few plants in mendels experiments?
F2 generation
Which generation were recessive traits hidden in all the plants in mendels experiments?
F1 generation
In mendels model of segregation what was the ratio of tall plants to short plants in the F2 generation?
3 dominant to 1 recessive
In which generation were recessive traits hidden in all plants in mendels experiment?
f2 generation
In Mendels cross for stem height what contrasting traits did the P plants in the P generation exhibit?
small heights and a dirty green color
In which generation were recessive traits hidden in all the plants in Mendels experiments?
f2 generation
What happened in mendels experiments when a pea received two different alleles for the same trait?
Unless the alleles are codominate (which Mendel did not have in pea plants), one will be dominate and will be what you see (phenotype) and one will be recessive and you will not see it.
Which characteristic was true of mendels generation plants?
they were all hybrids
What was the f2 generation in mendels experiment?
There were three times as many tall plants as short plants.
What was the original generation of pea plants in mendels experiment?
P1 or parental
