Which structures perform the function of mitochondria in bacteria?
(1) Nucleoid
(2) Ribosomes
(3) Cell wall
(4) Mesosomes
Correct Answer : (4)
2.Vascular bundle of monocot stem is
(1) scattered
(2) endarch
(3) closed
(4) all of these.
Correct Answer : (4)
3.The heart is covered by
(1) epicardium
(2) pericardium
(3) supracardium
(4) endocardium.
Correct Answer : (2)
4.In biotechnical processes cDNA is prepared from
(1) B-DNA
(2) hn RNA
(3) Z-DNA
(4)mRNA.
Correct Answer : (4)
5.One of the following is not a greenhouse gas
(1) carbon dioxide
(2) methane
(3) ethane
(4) N2O.
Correct Answer : (3)
6.The water potential of pure water is
(1) less than zero
(2) more than zero but less than one
(3) more than one
(4) zero.
Correct Answer : (4)
7.The stage between two meiotic divisions is called
(1) interphase
(2) cytokinesis
(3) interkinesis
(4) karyokinesis
(5) diakinesis.
Correct Answer : (3)
8.In frog, mesorchium is a thin fold of membrane extending between
(1) two testes
(2) liver and kidneys
(3) two kidneys
(4) kidneys and testes.
Correct Answer : (4)
9.Nissl’s bodies are mainly composed of
(1) proteins and lipids
(2) DNA and RNA
(3) nucleic acids and SER
(4) free ribosomes and RER.
Correct Answer : (4)
10.Amino acid binding site oftRNA is
(1) 5′end
(2) T ψ C loop
(3) DHU loop
(4) 3′end.
Correct Answer : (4)
11.Tendons and ligaments are kind of
(1) muscular tissue
(2) connective tissue
(3) epidermal tissue
(4) nervous tissue.
Correct Answer : (2)
12.Which of the following statements is correct with reference to enzymes?
(1) Holoenzyme = Apoenzyme + Coenzyme
(2) Coenzyme = Apoenzyme + Holoenzyme
(3) Holoenzyme = Coenzyme + Co-factor
(4) Apoenzyme = Holoenzyme + Coenzyme
Correct Answer : (1)
13.Which among these is not involved in excretion in cockroaches?
(1) Malpighian tubules
(2) Nephrocytes
(3) Uricose glands
(4) Maxillary palps
(5) Fat body
Correct Answer : (4)
14.Population growth-curve is sigmoid, if the growth pattern is(1) logistic(2) geometric(3) exponential(4) accretionary.
Correct Answer : 1
15.After surgical removal of an infected gall bladder, a person must be especially careful to restrict dietary intake of
(1) starch
(2) protein
(3) sugar
(4) fat.
Correct Answer : (4)
16.Which one of the following methods is commonly used to maintain the genetic traits of a given plant?
(1) By propagating through seed germination
(2) By propagating through vegetative multiplication
(3) By generating hybrids through inter-generic pollination
(4) By treating the seeds with gamma radiations
Correct Answer : (2)
17.Brunner’s glands are found in
(1) mucosa of duodenum
(2) mucosa of ileum
(3) submucosa of duodenum
(4) submucosa of ileum.
Correct Answer : (3)
18.In unilocular ovary with a single ovule, the placentation is
(1) marginal
(2) basal
(3) free central
(4) axile.
Correct Answer : (2)
19.At metaphase, chromosomes are attached to the spindle fibres by their
(1) satellites
(2) secondary constrictions
(3) kinetochores
(4) centromeres.
Correct Answer : (3)
20. Filiform apparatus is characteristic feature of
(1) aleurone cell
(2) synergids
(3) generative cell
(4) nucellar embryo.
Correct Answer : (2)
21.World Ozone Day is celebrated on
(1) 5thJune
(2) 21stApril
(3) 16thSeptember
(4) 22ndApril.
Correct Answer : (3)
