Recent questions tagged biology / GO BioTechnology

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GATE2018-40
$5'$ capping of mRNA transcripts in eukaryotes involves the following events: Addition of GMP on the $5'$ end Removal of $\gamma$-phosphate of the triphosphate on first base at the $5'$ end $5'-5'$ linkage between GMP and the first base at $5'$ end Addition of methyl group ... is the correct sequence of events? P, Q, R, S P, R, Q, S Q, P, R, S Q, P, S, R

$5'$ capping of mRNA transcripts in eukaryotes involves the following events:Addition of GMP on the $5'$ endRemoval of $\gamma$-phosphate of the triphosphate on first bas...

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gatecse asked Feb 20, 2018

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GATE2018-37
An analysis of DNA-protein interactions was carried out using all DNA-protein complexes in the protein data bank (PDB). The frequency distribution of four amino acid residues, represented as P, Q, R and S, occurring in non-covalent interactions between the protein and DNA backbone is shown below. Which ... Gln, Q-Glu, R-Lys, S-Arg P-Asn, Q-Asp, R-Arg, S-Lys P-His, Q-Glu, R-Gln, S-Lys

An analysis of DNA-protein interactions was carried out using all DNA-protein complexes in the protein data bank (PDB). The frequency distribution of four amino acid resi...

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gatecse asked Feb 20, 2018

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GATE2018-31
Determine the correctness or otherwise of the following Assertion [a] and the Reason [r]: Assertion: The association constant in water for the G-C base pair is three times lower than that for the A-T base pair. Reason: There are three hydrogen bonds in the G-C base pair and two in ... is true Both [a] and [r] are false Both [a] and [r] are tme and [r] is not the correct reason for [a]

Determine the correctness or otherwise of the following Assertion [a] and the Reason [r]:Assertion: The association constant in water for the G-C base pair is three times...

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gatecse asked Feb 20, 2018

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4

GATE2018-15
Which one of the following statements is true for actin? Actin filament is structurally polarized and the two ends are not identical De novo actin polymerization is a single-step process The pointed end of the actin filaments is the fast growing end Actin forms spindle fibers during mitosis

Which one of the following statements is true for actin?Actin filament is structurally polarized and the two ends are not identicalDe novo actin polymerization is a singl...

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gatecse asked Feb 20, 2018

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5

GATE2018-14
Cell type A secretes molecule X into the culture medium. Cell type B in the same culture responds to the molecule X by expressing protein Y. Which one of the following modes of signaling represents the interaction between A and B? Autocrine Juxtacrine Paracrine Intracrine

Cell type A secretes molecule X into the culture medium. Cell type B in the same culture responds to the molecule X by expressing protein Y. Which one of the following mo...

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gatecse asked Feb 20, 2018

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6

GATE2018-10
Which one of the following metabolic processes in mammalian cells does NOT occur in the mitochondria? Citric acid cycle Oxidative phosphorylation Fatty acid $\beta$-oxidation Glycolysis

Which one of the following metabolic processes in mammalian cells does NOT occur in the mitochondria?Citric acid cycleOxidative phosphorylationFatty acid $\beta$-oxidatio...

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gatecse asked Feb 20, 2018

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GATE2018-9
Which one of the following is INCORRECT about protein structures? A protein fold is stabilized by favorable non-covalent interactions All parts of a fold can be classified as helices, strands or turns Two non-covalent atoms cannot be closer than the sum of their van der Waals radii The peptide bond is nearly planar

Which one of the following is INCORRECT about protein structures?A protein fold is stabilized by favorable non-covalent interactionsAll parts of a fold can be classified ...

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gatecse asked Feb 20, 2018

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8

GATE2018-4
If a segment of a sense strand of DNA is $5'-\text{ATGGACCAGA}-3'$, then the resulting RNA sequence after transcription is $5' – \text{AGACCAGGTA}-3’$ $5'- \text{UCUGGUCCAU}-3'$ $5'- \text{UACCUGGUCU}- 3'$ $5’ -\text{AUGGACCAGA}-3’$

If a segment of a sense strand of DNA is $5'-\text{ATGGACCAGA}-3'$, then the resulting RNA sequence after transcription is$5' – \text{AGACCAGGTA}-3’$$5'- \text{UCUGGU...

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gatecse asked Feb 20, 2018

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9

GATE2018-3
The repeat sequence of telomere in humans is $5'-\text{TATAAT}-3’$ $5'-\text{TTAGGG}-3'$ $5’-\text{GGGCCC}-3'$ $5’-\text{AAAAAA }-3'$

The repeat sequence of telomere in humans is$5'-\text{TATAAT}-3’$$5'-\text{TTAGGG}-3'$$5’-\text{GGGCCC}-3'$$5’-\text{AAAAAA }-3'$

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gatecse asked Feb 20, 2018