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Home » GAT Subject » Agriculture » Aptitude Test - 11
1.Nuclein from nuclei of pus cells was separated by:
A. Miescher
B. Sutton
C. Altmann
D. Miescher
2.Genetics is a branch of biology, which deals with:
A. Laws of heredity and variations
B. Process of cell division at gametogenesis
C. Formation of new species through natural selection
D. Laws of heredity and variations
3.Term genetics was first used by:
A. Bateson
B. Sutton
C. Mendel
D. Bateson
4.Vapour theory of inheritance was put forward by:
A. Pythgorus
B. Aristotle
C. Graaf
D. Pythgorus
5.Who claimed to observe a mini form of man inside the sperm?
A. Hertsoeker
B. Bateson
C. Weismann
D. Hertsoeker
6.Who is considered father of genetics
A. Mendel
B. Weismann
C. Bateson
D. Mendel
7.Gregor John Mendel is famous for:
A. Mutation teory
B. Laws of heredity
C. Discovery of genes
D. Mutation teory
8.Unit of inheritance is called :
A. Genotype
B. Phenotype
C. Gene
D. Genotype
9.The term gene was first used by:
A. Johannsen
B. Mendel
C. Morgan
D. Johannsen
10. Branch of biology, which deals with the laws of heredity or similarities and dissimilarities between individuals related by descent, is called:
A. Genetics
B. Eugenics
C. Evolution
D. Genetics
11.Theory of continuity of germplasm suggests that:
A. Germinal material of body passes through gametes from one generation to another
B. Sex cells are provided with mankins of adult bodies
C. Embryo develops from a simple fertilized cell and becomes a baby during later stages of pregnancy
D. Germinal material of body passes through gametes from one generation to another
12. Law of dominance was given by:
A. Mendel
B. Weismann
C. de Vries
D. Mendel
13.Who observed sperms for the first time?
A. Graff
B. Leeuwenhock
C. Swammerdon
D. Graff
14.Who discovered the ova for the first time:
A. Graff
B. Malpighi
C. Swammerdon
D. Graff
15.The worker who studied experimentally and proposed the laws of heredity was:
A. Muller
B. Morgan
C. Maipighi
D. Muller
16.. Unit factor term for controlling characters of individuals was given by:
A. Mendel
B. Morgan
C. Malpighi
D. Mendel
17. Mendel selected which of the following traits for his studies:
A. Stem length (tall or dwarf), flower position (apical or axial)
B. Flower colour (purple or white), seed shape (round or wrinkled)
C. Colour of pod (green or yellow), cotyledon colour (yellow or green)
D. Stem length (tall or dwarf), flower position (apical or axial)
18.Which of these characters is dominant:
A. Axial position of flowers
B. Apical position of flowers
C. Green colour of cotyledons
D. Axial position of flowers
19. If a tall plant is crossed with a dwarf plant the cross is called:
A. Test cross
B. Backcross
C. Green colour of cotyledons
D. Test cross
20. If a genotype is not known it is crossed with recessive parent to reveal what is hidden then the cross is known as:
A. Backcross
B. Monohydrid cross
C. Test cross
D. Backcross
21.Who formulated chromosomal theory of inheritance:
A. Sutton
B. Morgan
C. Bateson
D. Sutton
22. A cross between F1 hybrids with either of the parent is called:
A. Back-cross
B. Test-cross
C. Reverse-cross
D. Back-cross
23. Which of these terms indicate a pair of contrasting characters or factors
A. Allele
B. Phenotype
C. Homozygous
D. Allele
24. In case red flower colour is dominant to white flower colour which of these statements is correct:
A. All red-flowered plants from red flowered plants
B. A few red-flowered plants from red-flowered plants
C. Ration of red-flowered plants from white-flowered hybrid plants is 1:1
D. All red-flowered plants from red flowered plants
25.Why pea plants were most suitable for Mendel's experiments than dogs because:
A. There were no pidegree records of dogs
B. Pea plants can be selfed
C. All pea plants have two number of chromosomes
D. There were no pidegree records of dogs
26. The first crop plant genome sequenced
A. Maize
B. Wheat
C. Rice
D. Maize
27.Urea and Formamide can:
A. Increase Tm of DNA
B. Decrease the Tm of DNA
C. Helps faster re-annealing of DNA
D. Increase Tm of DNA
28.The first transgenic plant to be produced:
A. Rice
B. Maize
C. Cotton
D. Rice
29.Explants used for tissue culture can be taken from:
A. Bud
B. Root tip
C. Nodal stem segments
D. Bud
30.A low auxin:cytokinin ratio leads to:
A. Shoot formation
B. Root formation
C. Fruit formation
D. Shoot formation
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