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- 1 What is the genotype of a true-breeding tall plant?
- 2 When Mendel performed a cross between a true-breeding tall plant and a true-breeding short plant what result did he obtain in the offspring?
- 3 What is a true breeding genotype?
- 4 When Gregor Mendel crossed homozygous tall plants with homozygous short plants What was the genotype of the offspring?
- 5 Did Mendel cross hybrid plants?
- 6 What is true breeding in plants?
- 7 How many terms did Gregor Mendel study?
What is the genotype of a true-breeding tall plant?
A true-breeding plant with round seeds would have a genotype of (RR) for that trait and a true-breeding plant with wrinkled seeds would have a genotype of (rr). When allowed to self-pollinate, the true-breeding plant with round seeds would produce only progeny with round seeds.
When Gregor Mendel crossed a tall plant TT with a short plant tt their offspring F1 plants inherited?
Biology 2nd semester final
| Question | Answer |
|---|---|
| Gregor Mendel concluded that traits are | The inheritance of traits |
| When Gregor Mendel crossed a true- breeding tall plant, with a short plant the F1 plants inherited | Prevent self-pollination |
| The principle of dominance | Some alleles are dominant and others are recessive |
When Mendel performed a cross between a true-breeding tall plant and a true-breeding short plant what result did he obtain in the offspring?
When a tall and short plant are crossed, all of the offspring are tall. If the offspring self-fertilize, they produce tall and short plants in a ratio of 3:1 in the next generation. Mendel’s actual counts were 787 tall:277 short plants in this generation (2.84:1 ratio).
What is a true breeding cross?
A true breeding is a kind of breeding wherein the parents would produce offspring that would carry the same phenotype. This means that the parents are homozygous for every trait. With plants, true breeding occurs when plants produce only offspring of the same variety when they self-pollinate.
What is a true breeding genotype?
True breeding means that the parents will also pass down a specific phenotypic trait to their offspring. True bred organisms will have a pure genotype (genetic expression of a trait) and will only produce a certain phenotype. True bred is sometimes also called pure bred.
When Gregor Mendel crossed homozygous tall plants TT with homozygous short plants TT all the offspring were tall because?
Each of the offspring has one “T” allele, so they are all tall plants. This is because the “T” allele is dominant over the “t” allele, so a plant with one “t” allele and one “T” allele will only display the traits of the “T” allele, which in this case is a tall pea plant.
When Gregor Mendel crossed homozygous tall plants with homozygous short plants What was the genotype of the offspring?
Gregor Mendel crossed homozygous tall plants (TT) with homozygous short plants (tt). All the resulting offspring were tall. From these results, what conclusion did Mendel draw? Tallness is a dominant trait.
When Mendel crossed a plant with green peas?
Mendel crossed true-breeding plants having yellow peas with plants having green peas. The resulting plant had all yellow peas. An F1 cross resulted in 3/4ths of the plants having yellow peas and 1/4th of the plants having green peas.
Did Mendel cross hybrid plants?
Dominant and recessive traits Mendel crossed pure lines of pea plants. Dominant traits, like purple flower colour, appeared in the first-generation hybrids (F1), whereas recessive traits, like white flower colour, were masked.
When Mendel crossed true-breeding tall and short parental plants what was produced quizlet?
Terms in this set (20) When Gregor Mendel crossed true-breeding tall plants with true-breeding short plants, why was it impossible to observe segregation? true-breeding plants that produced axial flowers were crossed with true-breeding plants that produced terminal flowers.
What is true breeding in plants?
true-breeding plant: a plant that always produces offspring of the same phenotype when self-fertilized; one that is homozygous for the trait being followed.
When Gregor Mendel crossed a tall plant with a short plant?
When Gregor Mendel crossed a tall plant with a short plant, the F1 plants inherited… When Gregor Mendel crossed true-breeding tall plants with true-breeding short plants, all the offspring were tall because…
How many terms did Gregor Mendel study?
You just studied 17 terms! Now up your study game with Learn mode. Gregor Mendel used pea plants to study… Gregor Mendel concluded that traits are… When Gregor Mendel crossed a tall plant with a short plant, the F1 plants inherited…
What would a punnet square show about Gregor’s cross?
If you made a Punnet Square showing Gregor’s cross between true-breeding tall plants and true-bredding short plants, the square would show that the offspring had… What principle states that during gamete formation genes for different traits separate with out influencing each other’s inheritance?