Question

19. Read the following and answer any four questions from 19 01 to 19 (2) (1x4)
Mendel conducted dihybrid cross which involved two pairs of contrasting characters.
The results obtained were amazingly unique. Mendel is known as the Father of
Genetics
Parent
generation
Gametes Y
Funst
generation
generation
Yellow round
We
Green-round
8
Yellow rinkled
yynt Greva wrinkled
0 Which two pairs of contrasting characters are involved in the above parental cross?
a) Round, yellow and green wrinkled
b) Round green and yellow wrinkled
c) Wrinkled yellow and round green
d) Flat yellow and constricted green
1) What is the genotype of the parent with round and wrinkled seeds?
a) RRYY
b) RRyy
c) RrYy
d) TYY
11) In the Fı generation, what is the phenotype of the offspring?
a) Round and yellow
b) Green and round
c) Green and wrinkled
d) Round and wrinkled
iv) How many heterozygous offspring are produced in the Fa generation, if a total of 16
offspring are produced?
a) 12
b) 14
c) 16
v) What is the ratio of parental combination to recombinants?
a) 1:7
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Answer 1

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