1. A Mendelian experiment consisted of breeding tall pea plants bearing violet flowerswith short pea plants bearing white flowers. The progeny all bore violet flowers,but almost half of them were short. This suggests that the genetic make-up of thetall parent can be depicted as(a) TTWW(b) TTww(c) TtWW(d) TtWw
Question
- A Mendelian experiment consisted of breeding tall pea plants bearing violet flowerswith short pea plants bearing white flowers. The progeny all bore violet flowers,but almost half of them were short. This suggests that the genetic make-up of thetall parent can be depicted as(a) TTWW(b) TTww(c) TtWW(d) TtWw
Solution
The question is about Mendelian genetics, specifically about the principles of dominance and segregation.
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The tall pea plants bearing violet flowers are crossed with short pea plants bearing white flowers.
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The progeny all bore violet flowers, which suggests that the violet flower color is dominant over white. This means the tall parent must have at least one dominant allele for violet color (W).
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Almost half of the progeny were short, which suggests that the height trait is not completely dominant in the tall parent. This means the tall parent must have one dominant allele for tall height (T) and one recessive allele for short height (t).
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Therefore, the genetic make-up of the tall parent can be depicted as (d) TtWw.
Similar Questions
Sometimes, when Mendel crossed two pea plants with each other, he obtained a phenotypic ratio of 3:1 purple-flowered pea plants to white-flowered pea plants. These results are consistent with which set of parents?Multiple ChoiceHomozygous purple pea plant and homozygous white pea plantHeterozygous purple pea plant and homozygous purple pea plantHeterozygous purple pea plant and homozygous white pea plantHeterozygous purple pea plant and heterozygous purple pea plant
Mendel bred a purple-flowered pea plant with a white-flowered pea plant and found that all the offspring had purple flowers. But then when he bred together two of the purple-flowered offspring, some of their offspring had white flowers.Using the concepts of dominant and recessive alleles, explain how the trait of white flowers skipped a generation.
Gregor Mendel was a critical contributor to our understanding of inheritance today. In his experiments he tracked seven visual traits of pea plants and ensured that they produced offspring identical to themselves. What are the terms that we used to identify two separate factors?*1 pointgenotype; true breedinggenotype; cross breedingphenotype; true breedingphenotype; cross breeding
When Mendel crossed tall (Tt) plants with tall (Tt) plants the offspringMultiple Choicedid not grow and reproduce.were always short.were always tall.were always medium height.were mostly tall individuals and a few short individuals.
Which one of the following traits of garden pea studied by Mendel was a recessive feature?Green seed colourGreen pod colourRound seed shapeAxial flower position
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