NEET 2020 Phase 1

The roots that originate from the base of the stem are

The transverse section of a plant shows following anatomical features :
(i) Large number of scattered vascular bundles surrounded by bundle sheath (ii) Large conspicuous parenchymatous ground tissue (iii) Vascular bundles conjoint and clos...

Identify the incorrect statement.

Match the following columns and select the correct option :

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Bilaterally symmetrical and acoelomate animals are exemplified by

If the head of cockroach is removed, it may live for few days because

Which of the following statements are true for the phylum-Chordata (i) In Urochordata notochord extends from head to tail and it is present throughout their life. (ii) In Vertebrata notochord is present during the embryonic period only. (ii...

Match the following columns and select the correct option :

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Which of the following regions of the globe
exhibits highest species diversity?

According to Robert May, the global species
diversity is about

Which of the following is correct about viroids?

Which one of the following is the most abundant protein in the animals?

Identify the basic amino acid from the
following

Identify the wrong statement with reference to
the gene ‘I’ that controls ABO blood groups.

Match the following



(a) Inhibitor of
catalytic activity
(i) Ricin


(b) Possess peptide bonds
(ii) Malonate


(c) Cell wall material
in fungi

(iii) Chitin


(d) Secondary
metabolite
(iv)...

Identify the substances having glycosidic bond and peptide bond, respectively in their structure

Match the following columns and select the
correct option.



Column-I
Column-II




(a) Bt cotton
(i) Gene therapy



(b) Adenosine
deaminase
deficiency
(ii) Cellular defence


(c) RNAi
(iii)...

Which of the following statements is not
correct?

The specific palindromic sequence which is
recognized by EcoRl is

Choose the correct pair from the following

Identify the wrong statement with regard to
Restriction Enzymes

The sequence that controls the copy number of
the linked DNA in the vector, is termed

In gel electrophoresis, separated DNA fragments
can be visualized with the help of

Bt cotton variety that was developed by
the introduction of toxin gene of Bacillus
thuringiensis (Bt) is resistant to

Match the organism with its use in biotechnology



(a) Bacillus thuringiensis
(i) Cloning vector


(b) Thermus aquaticus
(ii) Construction of first rDNA molecule


(c) Agrobacterium tumefaciens
(iii) DNA ...

The QRS complex in a standard ECG represents

Match the following columns and select the
correct option.



Column-I
Column-II




(a) Eosinophils
(i) Immune response


(b) Basophils
(ii) Phagocytosis


(c) Neutrophils
(iii) Release
hist...

Identify the wrong statement with reference to
transport of oxygen.

Select the correct events that occur during
inspiration.
(i) Contraction of diaphragm
(ii) Contraction of external inter-costal muscles
(iii) Pulmonary volume decreases
(iv) Intra pulmonary pressure increases

Some dividing cells exit the cell cycle and enter vegetative inactive stage. This is called quiescent stage (G0). This process occurs at the end of

Match the following with respect to meiosis
(A) Zygotene      (i) Terminalization
(B) Pachytene     (ii) Chiasmata
(C) Diplotene      (iii) Crossing over
(D) Diakinesis     (iv) Synapsis
Select the correct option from the following

Identify the correct statement with regard to
G1 phase (Gap 1) of interphase

Dissolution of the synaptonemal complex
occurs during

Which is the important site of formation of glycoproteins and glycolipids in eukaryotic cells?

Which of the following statements about inclusion bodies is incorrect?

Select the correct statement

Match the following columns and select the
correct option



Column-I
Column-II




(a) Pituitary gland
(i) Grave’s disease


(b) Thyroid gland
(ii) Diabetes mellitus


(c) Adrenal gland
(iii) ...

Identify the correct statement with reference to
human digestive system.

The enzyme enterokinase helps in conversion
of

Goblet cells of alimentary canal are modified from

Match the trophic levels with their correct species
examples in grassland ecosystem.
(A) Fourth trophic level   (i) Crow
(B) Second trophic level  (ii) Vulture
(C) First trophic level      (iii) Rabbit
(D) Third trophic level    (iv) Grass
...

In relation to Gross primary productivity and
Net primary productivity of an ecosystem,
which one of the following statements is
correct?

Montreal protocol was signed in 1987 for
control of

In water hyacinth and water lily, pollination
takes place by :

Snow-blindness in Antarctic region is due to

Which of the following refer to correct
example(s) of organisms which have evolved
due to changes in environment brought about
by anthropogenic action?
(a) Darwin’s Finches of Galapagos islands.
(b) Herbicide resistant weeds.
(c) Drug resis...

Embryological support for evolution was
disapproved by

From his experiments, S.L. Miller produced
amino acids by mixing the following in a
closed flask

Flippers of Penguins and Dolphins are
examples of

Presence of which of the following conditions
in urine are indicative of Diabetes Mellitus?