Recent questions tagged gate2018

Which one of the following is the solution for $\cos^2 x + 2 \cos x + 1 = 0$, for values of $x$ in the range of $0^\circ < x < 360^\circ$$45^\circ$$90^\circ$$180^\circ$$2...

In leguminous plants, both the rhizobium genes and the plant genes influence nodulation and nitrogen fixation. Which one of the following functions is NOT encoded by the ...

Genomic DNA isolated from a bacterium was digested with a restriction enzyme that recognizes a $6$-base pair (bp) sequence. Assuming random distribution of bases, the ave...

A single stem cell undergoes $10$ asymmetric cell divisions. The number of stem cells at the end is _________

The absorbance of a solution of tryptophan measured at $280$ nm in a cuvette of $2.0$ cm path length is $0.56$ at pH $7$. The molar extinction coefficient $(\varepsilon)$...

Which one of the following plant secondary metabolites is a natural insecticide?DigitoxinPyrethrinSalicylic acidAvenacin A-$1$

Standard error isthe probability of a type I error in a statistical testthe error in estimating a sample standard deviationthe standard deviation of a variable that follo...

Which one of the following techniques is used to monitor RNA transcripts, both temporally and spatially?Northern blottingIn situ hybridizationSouthern blottingWestern blo...

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...

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...

Which one of the following bioreactor configurations is the basis for a trickling biological filter?Stirred tankPacked bedAir liftFluidized bed

Which of the following technique(s) can be used to study conformational changes in myoglobin?Mass spectrometryFluorescence spectroscopyCircular dichroism spectroscopyLigh...

Which one of the following is NOT a principal component of innate immunity?Mucosal epitheliaDendritic cellsComplement systemMemory B-cells

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

Which of the following components constitute a molecular mechanics force field?Bond stretchingBond angle bendingTorsional bond rotationNon-bonded interactionsP and Q only...

Consider an unfair coin. The probability of getting heads is $0.6$. If you toss this coin twice, what is the probability that the fast or the second toss is heads?$0.56$$...

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 ...

A mixture contains three similarly sized peptides P, Q and R. The peptide P is positively charged, Q is weakly negative and R is strongly negative. If this mixture is pas...

Which one of the following is an example of a neurotoxin?Cholera toxinStreptolysin-OBotulinuin toxinDiphtheria toxin

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...

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

If serum is removed from the growth medium of human embryonic kidney cell line (HEK), then the cells willproliferate fasterproliferate normallyundergo cell cycle arrestun...