What happened when Mendel repeated his experiment with other pea characteristics?

What happened when Mendel repeated his experiment with other pea characteristics?

Mendel repeated this experiment with other combinations of characteristics, such as flower color and stem length. Each time, the results were the same as those shown in the figure above. The results of Mendel’s second set of experiments led to his second law. This is the law of independent assortment.

How did Mendel know that each of his pea plants carried two alleles encoding a characteristic?

How did Mendel know that each of his pea plants carried two alleles encoding a characteristic? The traits encoded by both alleles appeared in the F2 progeny. Both the principle of segregation and the principle of independent assortment refer to the separation of alleles in anaphase I of meiosis.

What happened in the P F1 and F2 generations of Gregor Mendel’s experiments with pea plants?

Mendel first experimented with just one characteristic of a pea plant at a time. The F1 generation results from cross-pollination of two parent (P) plants, and contained all purple flowers. The F2 generation results from self-pollination of F1 plants, and contained 75% purple flowers and 25% white flowers.

What were the results of Mendel’s experiments in peas?

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. However, recessive traits reappeared in second-generation (F2) pea plants in a ratio of 3:1 (dominant to recessive).

What was Mendel’s 2nd experiment?

As a second experiment, Mendel cross-pollinated two true-breeding plants for two characteristics of contrasting traits and continued them over a span of three generations. In this set of experiments, Mendel observed that plants in the F1 generation were all alike.

Why were pea plants used in Mendel’s experiments?

Mendel choose pea plants for his experiments because of the following reasons: (i) The flowers of this plant are bisexual. (ii) They are self-pollinating, and thus, self and cross-pollination can easily be performed. (iii) The different physical characteristics were easy to recognize and study.

What is Mendel’s pea plant experiment?

Mendel’s seminal work was accomplished using the garden pea, Pisum sativum, to study inheritance. This species naturally self-fertilizes, meaning that pollen encounters ova within the same flower. The flower petals remain sealed tightly until pollination is completed to prevent the pollination of other plants.

What was Mendel’s pea plant experiment?

Why did Mendel use pea plants in his experiments?

He chose pea plants because they had easily observable traits. The Law of independent assortment states that the inheritance of one character is always independent of the inheritance of other characters within the same individual.

What was Mendel investigating with his second set of experiments What was the outcome *?

The results of Mendel’s second set of experiments led to his second law. This is the law of independent assortment . It states that factors controlling different characteristics are inherited independently of each other.

What are the different characters in pea plant studied by Mendel for his experiments represent them in a tabular form?

Form of ripe pods (I) – inflated or constricted. Color of unripe pods (G) – green or yellow. Position of flowers (A) – axial or terminal. Length of stem (T) – tall or dwarf.

Why was pea plant selected for Mendel’s experiments?

Easy to grow in the garden. The flowers of pea plants are hermaphrodite, i.e flowers have bisexual characteristics. The generation time of pea plants is less. They have excellent disease resistance and have an optimal rate of survival.

What did Mendel experiment with second generation pea plants?

However, recessive traits reappeared in second-generation (F2) pea plants in a ratio of 3:1 (dominant to recessive). Mendel also experimented to see what would happen if plants with 2 or more pure-bred traits were cross-bred. He found that each trait was inherited independently of the other and produced its own 3:1 ratio.

What was the result of Mendel’s cross breeding experiments?

Mendel did thousands of cross-breeding experiments. His key finding was that there were 3 times as many dominant as recessive traits in F2 pea plants (3:1 ratio). Traits are inherited independently. Mendel also experimented to see what would happen if plants with 2 or more pure-bred traits were cross-bred.

How does Mendel’s principle of inheritance apply to animals?

Mendel worked on pea plants, but his principles apply to traits in plants and animals – they can explain how we inherit our eye colour, hair colour and even tongue-rolling ability. Mendel followed the inheritance of 7 traits in pea plants (Pisum sativum).

Why was Mendel’s paper ignored by the science community?

The science community ignored the paper, possibly because it was ahead of the ideas of heredity and variation accepted at the time. In the early 1900s, 3 plant biologists finally acknowledged Mendel’s work. Unfortunately, Mendel was not around to receive the recognition as he had died in 1884.