3. What is the genotypic ratio of the testcross shown in Figure 4?

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3. What is the genotypic ratio of the testcross
shown in Figure 4?
4. Give the phenotypic and genotypic ratio of the
following testcrosses of dihybrids:
Cross A
Cross B
P
ΥY RR
yy rr
P
YY Rr
yy rr
F1
F,
YR
Yy Rr
YR
Үy Rr
(Y
Yy rr
Cross C
Cross D
P.
Yy RR
yy rr
P
Yy Rr
yy rr
F,
F,
(yr
Y R
Yy Rr
Y R
Yy Rr
y R
yy Rr
Yy rr
(y R
yy Rr
yy rr
Transcribed Image Text:3. What is the genotypic ratio of the testcross shown in Figure 4? 4. Give the phenotypic and genotypic ratio of the following testcrosses of dihybrids: Cross A Cross B P ΥY RR yy rr P YY Rr yy rr F1 F, YR Yy Rr YR Үy Rr (Y Yy rr Cross C Cross D P. Yy RR yy rr P Yy Rr yy rr F, F, (yr Y R Yy Rr Y R Yy Rr y R yy Rr Yy rr (y R yy Rr yy rr
evious observations, he noticed something new. The inheritance
d shape was not dependent on each other. The frequency of rou
as highest since both of them were dominant traits, while the
equency were the lowest, since both of them were recessive tr
ency of round green seeds and wrinkled yellow seeds was the
Dihybrid Cross
YYRR
P Generation
F Generation
YyRr
Phenotype:
gametes from heterozygous parent
YR
yR
Yr
yr
F2 Generation
YR
YYRR
YYRR
YYRR
YyRr
Phenotype:
9:
3:
3:
yR
YYRR yRR
YyRr
yyRr
Yr
YYRR
YyRr
YYrr
Yyrr
yr
YyRr
yyRr
Yyrr
yyrr
Figure 4. Dihybrid cross of pea plants.
el carried out a number of dihybrid crosses for pairs of c
- TH
gametes from heterozygous parent
1.
Transcribed Image Text:evious observations, he noticed something new. The inheritance d shape was not dependent on each other. The frequency of rou as highest since both of them were dominant traits, while the equency were the lowest, since both of them were recessive tr ency of round green seeds and wrinkled yellow seeds was the Dihybrid Cross YYRR P Generation F Generation YyRr Phenotype: gametes from heterozygous parent YR yR Yr yr F2 Generation YR YYRR YYRR YYRR YyRr Phenotype: 9: 3: 3: yR YYRR yRR YyRr yyRr Yr YYRR YyRr YYrr Yyrr yr YyRr yyRr Yyrr yyrr Figure 4. Dihybrid cross of pea plants. el carried out a number of dihybrid crosses for pairs of c - TH gametes from heterozygous parent 1.
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