Biological Science - 2018 Past Year Paper - IIT JAM MCQ
30 Questions MCQ Test - Biological Science - 2018 Past Year Paper
One of Koch’s postulates states that the suspected causative organism should
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Which one of the following, involving transfer of a phosphate group, is an example of substratelevel phosphorylation?
Lysosomal targeting of proteins involves recognition of
In vitro, group I introns have the ability to
In polypeptide chains, the proline residue is unique in
Which one of the following microscopes has working principle most similar to the way a blind person reads?
Many plasma glycoproteins are protected from uptake and degradation by the hepatocytes in liver due to the presence of a terminal saccharide moiety known as
In mammals, which one of the following vitamins is required in amino group transfer reaction?
‘Philadelphia chromosome’ is NOT linked to
Decreasing the concentration of sodium ions from double stranded DNA solution results in decrease in Tm. This happens because of increased
During pre-mRNA splicing reaction, a lariat RNA is formed when the intron cleaved at the 5’ splice site gets linked by a
Match the endocrine gland in Group A with the hormone secreted by them in Group B
A plant producing white flower with white seed coat (dominant) was crossed with a plant producing violet flower with gray seed coat (recessive). Upon selfing of 144 F2 progeny plants, the number of plants continuing to produce violet flower with gray seed coat will be
A dihybrid phenotypic ratio of 15:1 was obtained while making a cross of AaBb x AaBb. This is an example of
On infection by a specific virus, a host generates cytotoxic T cells that kill
Which one of the following combinations showing the chromosome numbers for human cells is CORRECT?
Bottle X contains 1 L of water, while bottle Y, which has the same capacity as X, is empty. Water is poured from bottle X to Y. The plot of the quantity of water in Y as a function of the quantity of water in X is
The derivative of 2x with respect to x is
Which of the following techniques can be used to detect protein-protein interactions in-vivo?
[P] Two hybrid assay
[Q] Fluorescence resonance energy transfer
[R] Fluorescence recovery after photobleaching
[S] Gel-shift assay
The predominant mechanism of microRNA mediated regulation of gene expression is inhibition of
In human reproduction,
[P] spermatogenesis starts at puberty
[Q] oogenesis starts at fetal stage
[R] following meiosis, one oogonium produces 4 eggs
[S] following meiosis, one spermatogonium produces 4 sperms
Which of the above statements are CORRECT?
3’-Azido-2’,3’ dideoxy thymidine (AZT) with the structure shown above has potential to work as a drug against HIV because
A bacterium that arose 3.5 billion years ago divides once every 12 hours. Under ideal conditions, the number of generations the bacterium has undergone will be approximately
Which one of the following matches is CORRECT between the inhibitors given in Group A with their modes of action in Group B?
During synthesis of N-linked glycosylated proteins in mammalian cells, which one of the following composition of sugars is originally added as a core through dolichol-phosphate precursor?
For accurate determination of evolutionary relationship within elephants, an approach of choice would be to compare
Which of the following combinations of the statements about photorespiration is CORRECT?
[P] Photorespiration generates no ATP
[Q] Photorespiration produces no glucose
[R] Photorespiration releases O2
[S] Photorespiration does not occur in C4 plants
Important Questions for Biological Science - 2018 Past Year Paper
Biological Science - 2018 Past Year Paper MCQs with Answers
Online Tests for Biological Science - 2018 Past Year Paper
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