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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.

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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


Which generation were recessive traits hidden in all the plants in mendels experiments?

F1 generation


In which generation were recessive traits visible in a few plants in mendels experiments?

F2 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


When a first generation plant self pollinates what is the ratio of dominate to recessive traits in the second generation plants?

When a first generation plant self pollinates, the ratio of dominant to recessive traits in the second generation plants is typically 3:1. This is based on Mendel's principle of segregation, which predicts that in a monohybrid cross, three plants will exhibit the dominant trait and one will exhibit the recessive trait.


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.


If you are conducting a monohybrid cross of tall dominant and dwarf recessive plants the recessive trait in the F1 plants?

In a monohybrid cross of tall dominant and dwarf recessive plants, all the F1 plants will be tall. This is because the tall trait is dominant over the dwarf trait, so the presence of one dominant allele is sufficient to exhibit the tall phenotype. The dwarf trait will be masked in the F1 generation.


Which characteristic was true of mendels generation plants?

they were all hybrids