Biology Test from Dr Biswas and Biswas for AIPMT : 06 of 10

Which one of the following items gives its correct total number?
Floating ribs in humans - 4
Amino acids found in proteins - 16
Types of diabetes - 3
Cervical vertebrae in humans - 8
In germinating seeds fatty acids are degraded exclusively in the :
Proplastids
Glyoxysomes
Peroxisomes
Mitochondria
What does the filiform apparatus do at the entrance into ovule?
It helps in the entry of pollen tube into a synergid
It prevents entry of more than one pollen tube into the embryo sac
It brings about opening of the pollen tube
It guides pollen tube from a synergid to egg
/
Cork
Wood fibre
Pollen exine
Leaf cuticle
What is antisense technology?
A cell displaying a foreign antigen used for synthesis of antigens
Production of somaclonal variants in tissue cultures
When a piece of RNA that is complementary in sequence is used to stop the expression of a specific gene
RNA polymerase producing DNA
Haploids are more suitable for mutation studies than the diploids. This is because
haploids are reproductively more stable than diploids
mutagens penetrate in haploids more effectively than is diploids
haploids are more abundant in nature than diploids
all mutations, whether dominant or recessive are expressed in haploids
Identify the pair of nucleotides which are joined by 3 hydrogen bonds in double stranded DNA
AG
AT
TG
CG
What would be a complimentary sequence GATTACA?
GCGUUAG
CTAATGT
CGCAAUT
GCGTTUC.
Bulliform cells respond to which change?
Turgor pressure
Osmotic pressure
Photosensitization
None of the above.
Bacterial genomes consist of
circular, ssRNA
circular, dsDNA
linear, triple stranded DNA
zig-zag DNA.
Annual rings are found in plants belonging to  Annual rings
arctic regions
temperate areas
tropics
near sea beaches.
Histogen theory was proposed by
Hanstein
Eamu
Strasburger
Schmidt.
Which ion accumulates in the guard cells at the time of opening of stomata?
P
K
Mg
Ca
/
transpiration
respiration
guttation
Absorption.
Hydroponics is
plant growth in mineral deficient soil
soil conservation
plant growth under laboratory condition
plant growth in liquid culture medium.
The mineral constituent of the cell wall is
Fe
Mg
K
Ca
The amount of usable energy which is available for doing work when the temperature and pressure are uniform throughout the system is called
Enthalpy
Activation energy
Spontaneous energy
Free energy
Entropy
New Systematics introduced by Sir Julian Huxley is also called
Phenetics
Cladistics
Biosystematics
Numerical Taxonomy
Chemotaxonomy
/
(a) – (i) , (b) – iii, (c) - (ii), (d) – (iv)
(a) – (i) , (b) – iv, (c) - (iii), (d) – (ii)
(a) – (iv) , (b) – ii, (c) - (iii), (d) – (i)
(a) – (iii) , (b) – iv, (c) - (i), (d) – (ii)
(a) – (iv) , (b) – iii, (c) - (ii), (d) – (i)
Consider the following statements regarding the major pigments and stored food in the different groups of algae and select the correct options given: (a) In Chlorophyceae the stored food material is starch and the major, pigment are chlorophyll-a and d (b) In Phaeophyceae, laminarin is the stored food and major pigments- chlorophyll-a and b (c) In Rhodophyceae, floridean. starch is the stored food and the major pigments are chlorophyll- a, d and phycoerythrin
(a) is correct, but (b) and (c) are wrong
(a) and (b) is correct, but (c) are wrong
(a) and (c) is correct, but (b) are wrong
(b) and (a) and (c) are wrong
(c) is correct, but (a) and (b) are wrong
Which of the following correctly represents the type of life cycle patterns from the options given?
1. Diplontic 2. Haplodiplontic 3. Haplontic
1. Haplodiplontic 2. Haplontic 3. Diplontic
1. Diplontic 2. Haplontic 3. Haplodiplontic
1. Diplontic 2. Haplontic 3. Haplodiplontic
1. Diplontic 2. Haplodiplontic 3. Diplontic
Choose the wrong pair.
Hepaticopsida .. Marchantia
Lycopsida .. Selaginella
Bryopsida .. Anthoceros
Pteropsida .. Dryopteris
Spenopsida .. Equisetum
Which of the following is a merit in the Bentham and Hooker's system or classification?
The position of Gymnospermae in between dicots and monocots
Closely related families are placed apart
The placement of family Asteraceae in the beginning of gamopetalae
The placement of order Ranales in the beginning
The placement of Orchidaceae in microspermae
The correct sequence of types of corolla in the figure given is 
(a) caryophyllaceous (b) papilionaceous (c) bilabiate (d) tubular (e) bell-shaped
(a) papilionaceous (b) bilabiate (c) tubular (d) bell-shaped (e) caryophyllaceous
(a) bilabiate (b) papilionaceous (c) caryophyllaceolis (d) bell-shaped (e) tubular
(a) caryophyllaceous (b) bilabiate (c) papilionaceous (d) tubular (e) bell-shaped
(a) tubular (b) bell-shaped (c) caryophyllaceous (d) bilabiate (e) papilionaceous
Which of the following statements is/are true? a. If the stem is jointed with solid nodes and hollow internodes, it is called Caudex b. In Tridax the stem is decumbent c. Corm is a condensed form of rhizome growing more or less in vertical direction d. Sucker is an underground modification of stem e. Biparous type of cymose branching is seen in Saraca
a, d and e only
b and c only
b,c and e only
c and d only
d and e only
/
Testa
Aleurone layer
Tegmen
Scutellum
Coleoptile
/
a – 3 , b – 4, c – 1, d – 5, e-2
a – 2 , b – 4, c – 1, d – 5, e- 3
a – 3 , b – 1, c – 4, d – 5, e- 2
a – 4 , b – 2, c – 5, d – 1, e-3
a – 5 , b – 4, c – 1, d – 3, e-2
Which of the following represents the floral characters of Liliaceae?
Six tepals, zygomorphic, six stamens, bilocular ovary, axile placentation
Tetramerous, actinomorphic, polyphyllous, unilocular ovary, axile placentation
Trimerous, actinomolphic, polyandrous, superior ovary, axile placentation
Bisexual, zygomorphic, gamophyllous, inferior ovary, marginal placentation
Unisexual, actinomorphic, trilocular, inferior ovary, axile placentation
The botanical name of soya bean is  
Cajanus cajan
Glycine max
Glycyrrhiza glaba
Abrus precatorius
Dolichos lablab
Which of the following is / are not characteristic features of Asteraceae? a. Cypsela type of fruit b. Syngenesious stamen c. Ovary bicarpellary and superior d. Placentation marginal e. Head type of inflorescence
b, c and d only
c and e only
c and d only
a and b only
c only
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Dr. SUBROTO BISWAS
Professor/SME/Instructor in Biology (NEET/AIIMS)
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