NEET Biology Model Test-9Question No:1
In malaria, the rupture of RBCs is associated with release of a toxic substance, haemozoin, which is responsible for the chill and high fever recurring every ______ days.
How many stamens are present in a flower of Indigofera?
Every 100 ml of blood can deliver around how many ml of oxygen to tissue under normal physiological condition?
Head of Cockroach is formed by fusion of how many segments?
The wall of eye ball is made up of how many layers?
Many fungi belong to the following genera causes ringworm
Injury to adrenal medulla is likely to affect the secretion of which one of the following?
[B] Both androstenedione and dehydroepiandrosterone
The permissible use of the technique amniocentesis is for
[A] detecting sex of the unborn foetus
[B] artificial insemination
[C] transfer, of embryo into the uterus of a surrogate mother
[D] detecting any genetic abnormality
Which one of the following kinds of animals are triploblastic acoelomate?
Identify the true statements —
I. Abstinence from drugs of dependence causes withdrawal symptoms but not craving.
II. Chikungunya is confirmed by Widal test.
III. Rheumatoid arthritis which affects many people in our society is an auto-immune disease.
IV AIDS was first reported in 1981 and is caused by a member of a group of viruses called restroviruses
V. Benign tumors are normally considered with metastasis. VI. Most powerful stimulant is cocaine,
[A] I, II,V
[B] I, III, IV, VI
[C] III, V, VI
The reaction, Amino acid + ATP —> Aminoacyl AMP + P-P depicts
[A] Amino acid assimilation
[B] Amino acid transformation
[C] Amino acid activation
[D] Amino acid translocation
Which of the following get accumulated in the vacuoles of guard cells during stomatal opening?
[A] Water, calcium and magnesium
[B] Starch, potassium and chloride ions
[C] Malate, sodium and potassium ions
[D] Malate, potassium and chloride ions
What is meant by the term ‘Darwin fitness’?
[A] The ability to survive and reproduce
[B] High aggressiveness
[C] Healthy appearance
[D] Physical strength
Which of the following organs in earthworm neutralizes humic acid present in humus?
[B] Calciferous glands
[C] Intestinal caecum
Which of the following is example of ex-situ conservation?
[A] Botanical garden
[B] Sacred groves
[C] Wild life safari park
[D] Both (a) and (c)
‘ Systema Naturae’ was written by
[D] Bentham and Hooker
Which of the following is obtained from genetic engineering?
[C] Golden rice
[D] None of these
Which is not correct according to Chargaff s rule?
[A] A + T = C + G
[B] A + G = C+T
[D] d) None of these
Which one of the following is not a bio-fertilizer?
[A] Bacillus thuringiensis
Part edible in cutard Apple is
[C] Placental hairs
[D] Fleshy thalamus
In an annual ring, the light coloured part is known as:
[A] Early wood
[B] Late wood
Cuticle is absent in:
[B] Young roots
[C] Mature stems
The cutaneous plexus and the papillary plexus consist of:
[A] A network of nerves to provide dermal sensation
[B] A network of arteries to provide derma supply
[C] Specialized cells for cutaneous sensations
[D] Gland cells that release cutaneous secretions
The “lock and key” model of enzyme action illustrates that a particular enzyme molecule:
[A] May be destroyed and resynthesised several times
[B] Interacts with a specific type of substrate molecule
[C] Reacts at identical rates under all conditions
[D] Forms a permanent enzyme-substrate complex
Nodule formation in leguminous plant believed to be occur due to
(i) Cytokinin produced by invading bacteria
(ii) Auxin produced by plant cell.
(iii) Auxin produced by invading bacteria
(iv) Cytokinin produced by plant cell.
[A] (i) and (ii) only
[B] (i) and (iii) only
[C] (iii) and (iv) only
[D] (ii) and (iv) only
Adaptive radiation is for:
[A] Dissimilar character for adoption from common ancestor
[B] Similar characters for adoption from common ancestor
[C] Dissimilar character for adoption from different ancestor
[D] Similar characters for adoption from different ancestor
Linkage group in E. coli is/are:
Double fertilization involves:
[A] Syngamy + triple fusion
[B] Double fertilization
[C] Development of antipodal cells
[D] None of the above
Blood clotting vitamin is:
[B] b) Vitamin-A
[D] d) Vitamin-B6
During a period of 1960 to 2000, wheat production increased from 11 million tonnes to 75 million tonnes, while rice production went up from 35 million tones to ______ million tones,
It has been calculated that a 250 kg of cow produces 200 gm of proteins per day. In the same period, 250 gm of a micro-organism like Methylophilus methylotropus, because of its high rate of biomass production and growth, can be expected to produce ______ tonnes of protein,
Mitochondria is sausage shaped or cylindrical having a diameter of ____.
[A] 0.2-1.0 µm
[C] 0.01-0.1 µm
[D] 0.001-.01 µm
The number of chromosomes in meiocyte of rice
How many eggs are present in each Oothecae of Cockroach?
Find out the total number of secondary messenger from the following? ATP,AMP,IP3,Ca2+
Which one of the following is not a micronutrient?
High uric acid be the cause of
[C] angina pectoris
During mitosis ER and nucleolus begin to disappear at
[A] late prophase
[B] early metaphase
[C] late metaphase
[D] early prophase
Select incorrect matching?
[A] Perromyzon – 6-15 pairs of gill slits
[B] Labeo – 4 pair of gill slits
[C] Spiracles in cockroach-10 pairs
[D] Gizzard of cockroach-8 chitinous teeth
Wind pollinated flowers are
[A] small, brightly coloured, producing large number of pollen grains
[B] small, producing large number of dry pollen grains
[C] large, producing abundant nectar and pollen
[D] small, producing nectar and dry pollen
The problem of blindness in poor countries can be taken care of by using the following
[A] golden rice
[B] transgenic tomato
[C] transgenic maize
[D] Bt brinjal
Which of the following is the most accepted theory for movement of water through plants?
[A] Cohesion-tension-transpiration pull theory
[C] Passive transport
[D] Root pressure
Absence of one sex chromosome causes
[A] Turner’s syndrome
[B] Klinefelter’s syndrome
[C] Down’s syndrome
[D] Tay-Sach’s syndrome
Fertilized eggs of P Americana are encased in
[C] genital chamber
How many species of birds are there in Greenland?