Genetics 2 online Test

Add to Favourites Share on Facebook Post to Twitter

Chromosomal theory of inheritance was given by
Sutton and Boveri
Morgan
Darwin
Correns
Removal of anthers before maturity from a flower is called
anthesis
Emasculation
Antherosis
male sterilization
All the members of F1 generation normally express
recessive trait
dominant trait
intermediate trait
both 'a' and b
A particular trait which is dominant in male if in the next experiment is carried on in female such cross is called
back cross
test cross
reciprocal cross
none of the above crossed with 'aa' the progeny will
If a plant with 'Aa' genotype is crossed with “aa the progeny will be in
1: 1
3 : I
I : 2:1
9:3:3:1
Which of the following is not a hereditary disease ?
Cystic fibrosis
Thalassaemia
Haemophilia
Cretinism
Hemophilia is more commonly seen in human males than in human females because
A greater proportion of girls die in infancy
This disease is due to a Y-linked recessive mutation
This disease is due to an X-linked recessive mutation
This disease is due to an X-linked dominant mutation
Both sickle cell anemia and Huntington's chorea are
Virus-related diseases
Bacteria-related diseases
Congenital disorders
Pollutant-induced disorders
Which one is an example of polygenic inheritance in man?
Sickle cell anaemia
Skin colour
Colour blindness
Phenylketonuiria.
A hemophilic man marries a normal homozygous woman. What is the probability that their son will be haemophilic?
100%
75%
50%
0%.
Sex of the child is determined by
male chromosome
female chromosome
size of egg
size of sperm.
Which of the following is responsible for unwinding DNA double helix structure?
Topoisomerase
DNA gyrase
DNA ligase
DNA polymerase
When AABbCC are selfed, what is the phenotypic segregation ratio in F2 generation?
9:3:3:1
3:1
27:9:9:3:3:3:1
1:1

Join the PMT Medical Entrance Exam Community

Description:

Genetics is a field of biology that deals in heredity and variation in living things. All living things inherit different traits from their parents . The idea is being used since prehistoric times to improve crops and animals through selective breeding. Modern genetics was set into action with the work of Gregor Mendel from the mid-nineteenth century. The physical basis for heredity as we know now are the units of inheritance called genes.

Tags:

AIPMT AIPMT Biology AIPMT Biology: Genetics Genetics Genetic foundations Gene expression Genetic variability GRE Biology: Gene expression Gene Regulation GRE Biology: Genetic foundations GRE Biochemistry Cell and Molecular Biology: Gene Regulation GRE Biochemistry Cell and Molecular Biology: Genetic Foundations AIPMT Biology: Cytogenetics Cytogenetics AIPMT Biology: Cytogenetics GRE Biology: Genetic variability genes IAS Mains General Studies I