Biology, 26.06.2019 07:30 trvptierra

In mendel experiment why do traits show up in the f2 generation that we're not present in the f1 generation

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Answer from: elliottmpotts6647

The traits were recesseve

good luck:)

Answer from: Katyazamo

They were recessive traits

Explanation:

In Mendel's experiment, all the plants produced in first generation were tall despite one parent being dwarf. The dwarf trait was hidden in the first generation and in the second generation it was observed again.

The allele responsible for dwarf height was a recessive allele. A recessive allele only expresses itself when it is present in two copies. Since here it was paired with a tall height dominant allele, it was not expressed and the entire progeny was tall in f1 generation,

TT X tt = Tt : Recessive allele is still present in f1 generation but the trait is hidden by dominant allele

When these Tt plants were self crossed to get f2 generation,

Tt X Tt = TT, Tt, Tt, tt : One fourth of the progeny had tt combination so the recessive allele could finally be expressed and these plants were dwarf.

Answer from: Quest

1. true.2. true.3. true.4. false.5. true.the concept of darwin's theory of evolution involves the idea that there are limited resources in a given living environment and that the organisms which live within have variations in their genetic make up due to random mating. the ones with beneficial genetic variations can express certain traits which give them an upper hand in surviving and reproducing in the said environment compared to ones who may have a more disadvantageous variation in traits. over time, the organisms with an upper hand will survive and reproduce more frequently and pass on their beneficial genes while the others die. the result is evolution, where we observe (usually, but not always) eventually, phenotypic distinct changes.

Answer from: Quest

The answer is c. they had seedshope this

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In mendel experiment why do traits show up in the f2 generation that we're not present in the f1 gen...

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