Question

create a checker board by crossing the plant
with round seed (TTRR) and the draft plant,
with wrinkled seed. And characterize
the F-2 generation​

Answer 1

Answer:

As we know that tallness (T) is dominant over dwarfism (t) and round seed (R) is dominant over wrinkled (r).

Parent Generation, P1 : TTRR x ttrr

F1 generation : TtRr (tall plant, round seed)

P2 generation : TtRr x TtRr

Gametes TtRr --->

TtRr TRTr  tR tr TRTTRR

(tall plant, round seed)

TTRr

(tall plant, round seed)

TtR

R

(tall plant, round seed)

TtRr

(tall plant, round seed)

 Tr TTRr

(tall plant, round seed)

TTrr

(tall plant, wrinkled seed)

 TtRr

(tall plant, round seed)

Ttrr

(tall plant, wrinkled seed)

 tRTtRR

(tall plant, round seed)

TtRr

(tall plant, round seed)

 ttRR

(dwarf plant, round seed)

 ttRr

(dwarf plant, round seed)

 trTtRr

(tall plant, round seed)

Ttrr

(tall plant, wrinkled seed)

ttRr

(dwarf plant, round seed)

ttrr

(dwarf plant, wrinkled seed)

Thus, dwarf plant, wrinkled seeded progeny (ttrr) in F2 generation= 1/16; D is correct answer.