AIIMS 2019

Animal of which phylum have hooks and
suckers and are endoparasite on other animals?

Which statement is correct?

Match the following columns and choose the
correct option from the codes given below.

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Which of the following linkage is found in sucrose?

Glucose on reacting with Benedict's solution may give the following precipitates except

Protein on reaction with which yields Ruhemann's purple?

Which of the following are all nucleotides?

Match the following columns and choose the
correct option from the codes given below.

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Chimeric DNA is

In Ti-plasmid, which of the following is removed?

What are the requirements in tissue culture?

Match the following columns and choose the
correct option from the codes given below.

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Virus free plants can be formed by

Hairy root disease of dicot plants is caused by

What is the function of Bowman's capsule and glomerulus?

Assertion : SA node malfunctioning leads to
disturbance of heart rate.
Reason : SA node is the pacemaker of heart
producing electric impulse for heart
contraction.

Oxytocin and ADH are produced by hypothalamus and released from

Assertion : Cholecystokinin is released by
duodenum.
Reason : It activates pepsinogen and bile
juice.

Assertion : Gastrin is a hormone that is
released from the gastrointestinal tract and
helps in digestion.
Reason : It promotes secretion of HCl and
trypsinogen.

Assertion : Malpighian tubules are excretory
organs in most of the insects.
Reason : These help in excretion of urea and
creatinine.

Immunity tolerance developed by

Assertion : Type-I diabetes is caused by
destruction of \(\beta\)-cells of islets of Langerhans.
Reason : Insulin can be taken as pills.

Assertion : Deficiency of an element may
lead to scurvy.
Reason : Daily requirement of ascorbic acid is
5 mg/day.

Assertion : Cannabinoids are drugs of abuse.
Reason : They affect cardiovascular system
and central nervous system activity.

Choose the correct option.

Assertion : Pituitary gland releases a
hormone which is helpful in childbirth.
Reason : Pituitary gland releases vasopressin
and anti-diuretic hormone which helps in
childbirth.

Cervical vertebrae differ from other vertebrae in having

Assertion : Calcium required for skeletal
muscle contraction.
Reason : Calcium influx releases
acetylcholine at neuromuscular junction.

The genetic codes of arginine are

Select the wrong statement from the following.

Gene library or DNA library has the collection of

Identify A, B and C

Assertion : In eukaryotes, transcription
occurs in nucleus.
Reason : In bacteria, transcription and
translation occurs in cytoplasm.

Which of the following is correct?

Which of the following represent zygomorphic symmetry?

Which of the following is incorrect?

Match the following columns and choose the
correct option from the codes given below.

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Select the correct option w.r.t. age pyramids.

Assertion : In commensalism, one organism
is benefitted and other is unaffected.
Reason : Cattle egret bird and cattle is an
example of commensalism.

What is the site of \(C_3\) cycle in \(C_3\) and \(C_4\) plants?

Assertion : In \(\mathrm{C}_3\) cycle, the first stable compound is \(3 \mathrm{C}\) compound.
Reason : In \(\mathrm{C}_4\) plants, Calvin cycle is absent.

Assertion : Gibberellin is useful in early seed
production in conifers.
Reason : Ethephon is responsible for early
ripening in tomato and apple.

Which of the following are homosporous?

Assertion : Selaginella and Salvinia are
homosporous.
Reason : In pteridophyte, Lycopodium is
precursor of seed habit.

Assertion : Heterospory and retention of
female gametophyte are responsible for
origin of seed habit in Selaginella.
Reason : Psilotum is a living fossil.

Mark the incorrect statement for inbreeding.

Match the following columns and choose the
correct option from the codes given below.

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Blood group of the father is ‘A’ and blood
group of mother is ‘B’. Then predict the
blood group of the progeny

Assertion : Down’s syndrome, Klinefelter’s
syndrome and Turner’s syndrome are
chromosomal disorders.
Reason : In Klinefelter’s syndrome females
are sterile.

ATP formation occurs through which of the following?