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- 1. Multiple Choice
Conditions of a karyotype 2n+1 and 2n 2 is called
Monosomy
Aneuploidy
Alloploidy
Polyploidy
- 2. Multiple Choice
In sickle cell anaemia, glutamic acid is replaced by valine. Which one of the following triplets codes for valine
GAA
GAG
GUA
GUG
- 3. Multiple Choice
Persons having genotype IAIB would show the blood group AB. This is because of
Pleiotropy
Co-dominanace
Segregation
Incomplete dominanace
- 4. Multiple Choice
The inheritance pattern of a gene over generations among humans is studied by the pedigree analysis. Character studied in pedigree analysis is equivalent to
Quantative trait
Mendelian trait
Maternal trait
Polygenic trait
- 5. Multiple Choice
Distance between genes and advantages of recombination shows
direct relationship
inverse relationship
parallel relationship
no relationship
- 6. Multiple Choice
All genes located on the same chromosome
forms different groups depending upon their relative distance
form one linkage group
will not form any linkage groups
forms interactive group that affect the phenotype
- 7. Multiple Choice
If a haemophilic woman marries a normal man
all their children will be normal
all their sons will be haemophilic
all their daughters will be haemophilic
50% sons and 50% daughters will be haemophilic
- 8. Multiple Choice
A woman with normal vision has a colourblind father. she marries a colourblind man. What proportion of their children will be colourblind?
25%
0%
50%
100%
- 9. Multiple Choice
In a dihybrid cross if you get 9:3:3:1 ratio, it denotes that
The alleles of two genes are interacting with each other
Its multigenic inheritance
It exhibits multiple allelism
The alleles of two genes are segregating independently
- 10. Multiple Choice
Ocassionally a single gene may express more than one effect. This phenomenon is called
multiple allelism
mosaicism
pleiotropy
polygeny
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