When Mendel crossed a pure tall pea plant with the dwarf pea plant what kind of plants did he get in the first generation?
Table of Contents
- 1 When Mendel crossed a pure tall pea plant with the dwarf pea plant what kind of plants did he get in the first generation?
- 2 What happens to the traits of the dwarf plant?
- 3 What happened when he crossed those plants to produce a second generation cross?
- 4 When Mendel crossed the pea plants the trait that seemed to disappear happened to reappear during what generation did it reappear?
- 5 What does it mean when pea plants are described as true-breeding?
When Mendel crossed a pure tall pea plant with the dwarf pea plant what kind of plants did he get in the first generation?
In one of his experiments with pea plants, Mendel observed that when a pure tall pea plant is crossed with a pure dwarf pea plant, in the first generation F1 only tall plants appear.
What happens to the traits of the dwarf plant?
(a) What happens to the traits of the dwarf plants in this case? (a) The dwarf trait is recessive that is it can only be expressed when present in omozygous condition. The cross produces heterozygotes andthus the dominant allele for tallness masks the dwarf allele. Hence the dwarf trait cannot be expressed.
When plants of F1 generation were crossed He observed that in F2 generation both tall and dwarf plants were present why did it happen?
(b) In the F2 generation, both the tall and dwarf traits are present in the ratio of 3 : 1. This showed that the traits for tallness and dwarfness are present in the F1 generation, but the dwarfness, being the recessive trait does not express itself in the presence of tallness, the dominant trait.
What Mendel discovered when he crossed tall pea plant with dwarf pea plant result was in F1 generation?
Mendel crossed F1 and F2 plants and got a punnet square upon that. The ratio for the offsprings was 9:3:3:1. Explanation: He crossed a tall, green, round, wrinkled trait.
What happened when he crossed those plants to produce a second generation cross?
The results of his experiments also disproved the idea of blending inheritance. Mendel concluded that two factors control each inherited trait. For the second generation, Mendel cross-pollinated two hybrids that had purple flowers. About seventy-five percent of the second-generation plants had purple flowers.
When Mendel crossed the pea plants the trait that seemed to disappear happened to reappear during what generation did it reappear?
Figure below shows Mendel’s results for the characteristic of flower color. Mendel carried out identical studies over three generations, (P, F1, and F2), for the other six characteristics and found in each case that one trait “disappeared” in the F1 generation, only to reappear in the F2 generation.
Why dwarf pea plants appear in F2 generation because of?
Result of Mendel’s monohybrid cross between Tall and dwarf pea plant: The seeds obtained from F1 plants were planted which developed into plants of second filial generation (F2). In F2 generation both tall and dwarf characters appeared in the ratio of approximately 3 tall to one dwarf (3:1).
Why are pea plants a good species to study genetics with?
To study genetics, Mendel chose to work with pea plants because they have easily identifiable traits (Figure below). For example, pea plants are either tall or short, which is an easy trait to observe. Mendel also used pea plants because they can either self-pollinate or be cross-pollinated.
What does it mean when pea plants are described as true-breeding?
Mendel’s Crosses The result is highly inbred, or “true-breeding,” pea plants. These are plants that always produce offspring that look like the parent. By experimenting with true-breeding pea plants, Mendel avoided the appearance of unexpected traits in offspring that might occur if the plants were not true breeding.