Question

Assertion (A): New combination of traits are observed in F2 offspring when

tall plants with round seeds are crossed with short plants with wrinkled seeds.

Reason (R): Tallness and round seed are both dominant traits.

i) both A and R are correct and R is correct explaination of A
ii) A and R is correct but R is not correct explaination of A
iii) A is true but R is false
iv)A is false but R is true..​

Answer 1

Answer:

There u go

Explanation:

The progeny of long plant with round seeds (TTRR) crossed with short plants with wrinkled seeds (ttrr) are all long plants with round seeds (TtRr). This is because tallness and round shape are both dominant traits while shortness and wrinkled shapes of seeds are recessive traits.

When F1 progeny (TtRr) are cross-bred by self pollination, then four types of progeny are produced in F2 generation. Out of these four types of progeny, two types will have traits like parents and the other two will have combination of traits. Thus,

1. Progeny with tall plants and round seeds- 9

2. Progeny with tall plants and wrinkled seeds-3

3. Progeny with short plants and round seeds-3

4. Progeny with short plants and wrinkled seeds-1

Thus, the phenotypic ratio in F2 generation will be- 9:3:3:1

Answer 2

I)  both A and R correct and R is correct explanation of A.

explanation

The progeny of long round seed plants (TTRR) crossed with short wrinkled seed plants (ttrr) are all long round seed plants (TtRr). This is because size and round shape are dominant traits, while short seeds and wrinkled shape are recessive traits.

explanation of crossed

Let's denote the gene that makes plants taller by 'T' and dwarfism by 't'. Erythrocyte genes are denoted by 'R' and leukemia genes by 'r'. Parental genotypes then become heterozygous large red blood - TTRr and homozygous dwarf, leukemia - ttrr.

Parental Phenotype - Crimson × Dwarf White

Parental Genotype - TTRr × ttrr

Gametes - TR, Tr, tr, tr

male/female                              TR                                  Tr

tr                                      TtRrtall red                  Ttrrtall white                                            

tr                                      TtRrtall red                        Ttrrtall white

F1 generation phenotype – tall red 2, tall white 2

F1 generation genotype – TtRr and Ttrr

Therefore, the proportion of large red flowers for the TTRr and ttrr hybrids is '50%'.

, so the correct answer is 50%.

From the above results, we see the inheritance of size letter i. H. Denoted by a “T” and has nothing to do with red. H. Represented by an “R” associated with flowers. Similarly, the dwarven character, i. H. Not white, represented by a "t". H. Denoted by an 'r' that leads to a flower. This is because her two pairs of letters in the above cross separate independently. That is, there are independent letter combinations when inheriting.

To learn more segregation follow the given link '

https://brainly.in/textbook-solutions/q-define-segregation

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