Cytogenetics Lethal Alleles Online Exam Quiz
Cytogenetics Lethal Alleles GK Quiz. Question and Answers related to Cytogenetics Lethal Alleles. MCQ (Multiple Choice Questions with answers about Cytogenetics Lethal Alleles
Cross of two yellow mice will give _____________ normal mouse.
Options
A : 1/4
B : 2/4
C : 1/3
D : 2/3
Huntington’s disease affects individuals carrying the gene starting from the age of ____________
Options
A : 10
B : 20
C : 30
D : Random
A person homozygous for lethal allele______________
Options
A : Always dies
B : Always expresses the phenotype
C : May not express the phenotype
D : They have severe abnormalities
In Aurea, a type of snapdragon, only ______________ carrying dominant genes live.
Options
A : Homozygous
B : Homozygote
C : Heterozygote
D : Heterozygous
The ______________ mouse is lethal.
Options
A : Homozygous white
B : Homozygous black
C : Heterozygous agouti
D : Homozygous yellow
The lethal mutation that is seen in the yellow mice is due to _______________ mutation
Options
A : Insertion
B : Deletion
C : Non-sense
D : Frame shift
Tay Sach’s disease doesn’t agree with which of the following?
Options
A : It causes death in heterozygotes
B : Death occurs within 2-3 years of life
C : HEXA gene is affected
D : Central nervous system is affected
Which of the following is not true for yellow mice?
Options
A : The homozygous yellow mice die
B : A normal ice crossed to yellow mice will always give normal probabilities of F1
C : In yellow mice the yellow coloring allele is under control of Raly promoter
D : The homozygous mouse dies as the yellow allele is produced in excess
Dominant lethal alleles are quickly removed from the pool while the recessive ones remain.
Options
A : True
B : False
C :
D :
Lethal alleles can only be recessive.
Options
A : True
B : False
C :
D :
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