Question

Give reasons for the appearance of new combination of characters in the F2 generation

Answer 1

Explanation:

• In F1 Generation according to Law Of Dominant in first generation only dominant character will appear.
• In F2 Generation after cross - section of dominant character it divided into 3:1 ratio that is 3 dominant and 1 segitate character appear and this is also according to Law of Segitation.

Thank You ❤️.

Make It Brainlist Answer.....

Answer 2

Answer:

During Mendel’s experiment with dihybrid cross, it was seen that all the plants in F1 generation produced round and yellow seeds. However, in F2 generation, phenotypes of different seeds were different. This shows new combination of characters in F2 generation.

Out of round and wrinkled texture, round texture is the dominant character. Similarly, out of yellow and green colors, yellow color is the dominant character.

In F1 generation, all the plants produced round yellow seeds because of dominance of characters. But genotype of all plants was of mixed characters, i.e.. RrYy. This happened because of Law of Independent Assortment. The gene for seed texture behaved independently of the gene for seed color.

Due to this, the F2 generation showed different combination of genotype, viz. RRYY, RRYy, RrYY, RrYy, rrYY, rrYy, rryy. This can be shown by following punette square: