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Quiz 7
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Q.1
Part of the plant where photosynthesis generally occurs
Roots
Leaves
Branches
Flowers
Q.2
Number of cranial nerve found in man is
10 pair
12 pair
24 pair
36 pair
Q.3
Centre of intelligence in human brain is
Gerebellum
Cerebrum
Medulla oblangate
None of these
Q.4
The outer white part of the eye which is supporting wall of the eyeball is known as
Cornea
Sclera
Iris
Retina
Q.5
Human eye can differentiate between colours due to
Rods
Cones
Bipolar nerves
Pigmented epithelium
Q.6
The outer membrane that covers the brain is
Myelin sheath
Dura mater
Arachnoid membrane
Pia mater
Q.7
Oxygenated blood flows through which vessel?
Pulmonary Veins
Pulmonary Arteries
Both A & B
None of the above
Q.8
Compared to land, the open oceans
Are rich in silica and iron
Are nutrient-poor environments
Contain unlimited nitrogen
Are nutrient-rich environments
Q.9
Blood group which has both antibodies is
A
B
AB
O
Q.10
Which among the following carries impure blood to human heart?
Aorta
Pulmonary vein
Pulmonary arteries
Vena Cava
Q.11
What is the main purpose of white blood corpuscles?
To carry nutrients
To combat infection
To carry oxygen
To give strength
Q.12
The genotype of a plant showing a dominant phenotype can be determined by
Backcross
Dihybrid cross
Testcross
Pedigree analysis
Q.13
Which one of the following is not a genetic disorder?
Colour blindness
Down's syndrome
Haemophilia
Xerophthalmia
Q.14
In man there are how many pairs of homologous chromosomes?
46
23
16
11
Q.15
The weight of the brain in the total weight of the body is about
2%
3%
4%
5%
Q.16
Cerebrum is located in which part of brain?
Lower side
Extension of brain
Fore front
None of these
Q.17
The energy stored in photosynthesis is obtained from
Sunlight
Oxidation of glucose
Breakdown of proteins
Breakdown of glucose
Q.18
Maximum fixation of solar energy is done by
Fungi
Protozoa
Bacteria
Green plants
Q.19
The schwann cell forms a myelin sheath around the
Nodes of Ranvier
Dendrites
Nucleus
Axon
Q.20
The peripheral nervous system consists of
Nerves from eyes to CNS
Nerves from ears to CNS
Nerves from skin to CNS
All of the above
Q.21
The innermost membrane that covers the brain is
Pleura
Duramater
Pia mater
Arachnoid membrane
Q.22
Which of the following cells produce antibodies?
Plasma cells
Monocytes
Mast cells
Neutrophils
Q.23
Study of effect of radiation on plant and animal is
Pathology
Etiology
Radiobiology
Cosmology
Q.24
Melvin calvin got Noble Prize for his studies on
Light reaction
Plant hormones
Carbon fixation
Photons
Q.25
A person with 'AB' blood group is sometimes called a universal recipient because of the
Lack of antigen in his b lood
Lack of antibodies in his blood
Lack of both antigen and antibodies in his blood
Presence of antibodies in his blood
Q.26
Nitrogenous bases in DNA and RNA?
Adenine
Cytosine
Guanine
All the above
Q.27
What base does guanine pair with?
Adenine
Thymine
Uracil
Cytosine
Q.28
It is composed of two polynucleotide chains which are coiled around each other in the form of a double helix.
DNA
RNA
Fats
None of the above
Q.29
How many chromosomes are in a human gamete?
23
46
92
102
Q.30
The smallest structural and functional unit of nervous system is
Centron
Dendron
Axon
Neuron
Q.31
Which part of the brain plays an important role in motor control?
Cerebellum
Cerebrum
Medulla
Pons
Q.32
Which systems comprise the nervous system?
Central nervous system
Peripheral nervous system
Both A & B
None of the above
Q.33
Kyoto Protocol is associated with
Species conservation
Climate change
Wetland Conservation
Medicinal plants
Q.34
It is the study of hereditary characters transmitted from parents to offspring.
Genetics
Evolution
Embryology
Molecular Biology
Q.35
Which describes the correct pairing of DNA bases?
Guanine - cytosine
Adenine - cytosine
Guanine - thymine
Thymine - cytosine
Q.36
Which part of human eye controls the amount of light entering the eye?
Pupil
Iris
Cornea
Retina
Q.37
Which of the following glands is both endocrine and exocrine?
Pancreas
Pituitary
Adrenal
Pineal
Q.38
How many pairs of chromosomes are found in a human cell?
18
23
27
32
Q.39
The experimental material used by Gregor Mendel is ________
Pea plant
Drossophila
Potato plant
None of the above
Q.40
Different forms of genes are called
Genomes
Allele
Genotypes
None of the above
Q.41
Fruitfly has
4 chromosomes
6 chromosomes
8 chromosomes
10 chromosomes
Q.42
What is the unit of heredity?
Cell
Blood
Gene
All of the above
Q.43
Who discovered genetic material?
Crick and Watson
Avery Mclood
Friedrich Griffith
Federik Meischer
Q.44
The inherited traits of an organism are controlled by
DNA
Enzymes
Nucleotides
RNA
Q.45
Sex determination of child is done by the chromosome of
Father
Mother
Both father and mother
None of these
Q.46
What is the distance of distinct vision (DDV) of a normal human eye?
15 cm
25 cm
30 cm
40 cm
Q.47
Which hormone causes emotional disturbance?
Thyroxine
Oxytocin
Vasopressin
Adrenalin
Q.48
Haemophilia is a hereditary disease carried by
Females and expressed by males
Males and expressed by males
Females and expressed by females
Males and expressed by females
Q.49
Mendel's second law is the law of
Segregation
Independent assortment
Dominance
Polygenic inheritance
Q.50
Which nitrogenous base is not found in dna?
Uracil
Thymine
Cytosine
Guanine
0 h : 0 m : 1 s
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