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The correct term is "true-breeding". What that means is that if he takes his two pea plants with white flowers and breeds them together, he will always get a pea plant with white flowers. Something that is true-breeding for a particular trait is homozygous, i.e. if the allele for red flowers is R and the allele for white flowers is w, then a true-breeding white flowering plant is ww, and true-breeding red flowering plant is RR.
If you cross-breed a true-breeding red flowering with a true-breeding white flowering plant, you would get 1/4 of the offspring as true-breeding red flowers, 1/4 of the off-spring as true-breeding white flowers, and 1/2 the offspring as heterozygous (not true-breeding) red flowers - Rw. If you don't start with true-breeding plants - say you start with Rw and ww (a red and a white plant) you get 1/2 the offspring heterozygous red, and 1/2 true-breeding white. Thus if you didn't know anymore, you would assume that half the time when you breed a red and a white plant, you would get a red plant, and half the time a white, which is incorrect. Furthermore, if you conducted the experiment again, say with RR and Rw, you would get a different result (in this case, all red). By starting with plants that are true-breeding, you ensure that you get the same results that properly show how the traits are passed on.
What else can I help you with?
How did Mendel's use of purebred plants for example purebred white and purebred purple-flowered peas-contribute his understanding of inheritance?
Gregor Mendel took two different colored pea plants: one had traits for white plants and the other had traits for a red plant. When Mendel cross bred the two plants, a plant with traits for a pink plant grew. This is how Mendel contributed to the understanding of inherited traits.
How do the plant will be identical to its parent?
purebred plants
Are all tall peas always purebred for tallness?
No, not all tall pea plants are purebred for tallness. In Mendel's experiments with pea plants, tallness is a dominant trait, but if a tall plant is heterozygous (having one allele for tallness and one for shortness), it can produce offspring that are either tall or short. Only plants that are homozygous for the tall trait (having two alleles for tallness) will consistently produce tall offspring. Thus, genetic testing or breeding records are needed to determine if a tall pea plant is purebred.
The plant used by Mendel for his experiment?
Gregor Mendel used pea plants for his hereditary experiments
Mendel's pea plants that had a round seed shape self-pollinated and produced plants with round seeds for many generations What type of plant is this?
The plant is most likely a homozygous dominant plant for seed shape, meaning it contains two dominant alleles for round seed shape (RR). This allows for consistent expression of the round seed trait in offspring.
What kind of plant did mendel use in his experiments?
purebred
Mendel crossed a purebred tall plant with a purebred short plant. What was the phenotype of the f1 generation?
The phenotype of the F1 generation was all tall.
Is a purebred pea plant small?
If the pea plant has the genetic to be small in the homozygous state, then it will be and conversely so. One of Mendel's experiments was to cross the purebred tall with the purebred small to see which trait was dominant. The allele for tallness is dominant in the pea plant,.
How did Mendel's use of purebred plants for example purebred white and purebred purple-flowered peas-contribute his understanding of inheritance?
Gregor Mendel took two different colored pea plants: one had traits for white plants and the other had traits for a red plant. When Mendel cross bred the two plants, a plant with traits for a pink plant grew. This is how Mendel contributed to the understanding of inherited traits.
Did Gregor Mendel use animals in his experiments?
Mendel studied plant inheritance.
Why was it important for Mendel to count large numbers of plants?
it gives him a more accurate description of the living plant.
How do the plant will be identical to its parent?
purebred plants
Are all tall peas always purebred for tallness?
No, not all tall pea plants are purebred for tallness. In Mendel's experiments with pea plants, tallness is a dominant trait, but if a tall plant is heterozygous (having one allele for tallness and one for shortness), it can produce offspring that are either tall or short. Only plants that are homozygous for the tall trait (having two alleles for tallness) will consistently produce tall offspring. Thus, genetic testing or breeding records are needed to determine if a tall pea plant is purebred.
The plant used by Mendel for his experiment?
Gregor Mendel used pea plants for his hereditary experiments
Which type of plant did Mendel originally study?
garden pea plant
What type of plant was Gregor Mendel famous for?
he was famous for the pea plant
Who invented the pea plant?
Gregor Mendel
