Cytogenetics Dihybrid Cross Online Exam Quiz
Cytogenetics Dihybrid Cross GK Quiz. Question and Answers related to Cytogenetics Dihybrid Cross. MCQ (Multiple Choice Questions with answers about Cytogenetics Dihybrid Cross
Considering a dihybrid cross, what is the probability of the progeny being heterozygous at both the alleles?
Options
A : 1/16
B : 4/16
C : 7/16
D : 9/16
What will be the dyhybrid ratio for a cross between HH TT with hh tt?
Options
A : 1:2:1
B : 9:3:3:1
C : All same
D : 3:1
By crossing homozygous short purple flowering parent with a heterozygous tall purple flowering parent you get 41 tall progeny. What will be the expected number of short progenies?
Options
A : 12
B : 42
C : 60
D : 80
The expected phenotypic ratio obtained by crossing the F1 generation in dihybrid cross would be?
Options
A : 3:1
B : 1:2:1
C : 9:3:3:1
D : 1:2:1:2:4:2:1:2:1
If you cross homozygous recessive short plant with heterozygous purple flower to heterozygous tall plant with heterozygous purple flower, what will be the expected phenotypic ratio?
Options
A : 9:3:3:1
B : 4:4:2:2
C : 3:1:3:1
D : 1:2:1:2:4:2:1:2:1
If you have an organism with the genotype Pp HH rr Ww this can be used as a parent in test cross for________
Options
A : H locus
B : R locus
C : W locus
D : P locus
Which of the following will be pure breeding for only one character?
Options
A : Hh Rr
B : HH Rr
C : HH RR
D : hh rr
In an organism you observe that phenotypes of the progeny are as – 315 H/H R/R, 108 H/-r/r, 101 h/h R/-, 32 h/h r/r. This shows_____
Options
A : Linkage
B : Lethal alleles
C : Epistasis
D : Normal ratio
In an experiment with drosophila eye colour purple/red and wing shape normal/vestigial you observe that offspring mainly have either purple vestigial trait or red normal trait. What is the expected parental trait?
Options
A : Purple long and Red long
B : Red Vestigial and purple long
C : Red vestigial and purple vestigial
D : Purple vestigial and red vestigial
If you include more number of genes in the cross, a branched diagram will be easier to find progeny phenotype.
Options
A : True
B : False
C :
D :
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