Highest voted questions in General Biology

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Which one of the following is NOT a principal component of innate immunity?Mucosal epitheliaDendritic cellsComplement systemMemory B-cells
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If the dissociation constant for solute-adsorbent binding is $K_D$, the retention time of the solute in a chromatography columnincreases with increasing $K_D$decreases wi...
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Which of the following essential element(s) is/are required as major supplement to enhance the bioremediation of oil spills by the resident bacteria?SulfurNitrogen and ph...
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The product(s) resulting from the hydrolysis of maltose is/area mixture of $\alpha$-D-Glucose and $\beta$-D-Glucosea mixture of D-Glucose and L-Glucose$\alpha$-D-Glucose ...
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Amino acid residue which is most likely to be found in the interior of water-soluble globular proteins isThreonineAspartic acidValineHistidine
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Prior exposure of plants to pathogens is known to increase resistance to future pathogen attacks.This phenomenon is known assystemic acquired resistancehypersensitive res...
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Reactions between antibodies and antigens that are detected by precipitate formation in an agar gel are referred asimmunoprecipitation assayimmunodiffusion assayimmunoagg...
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The reactions leading to the formation of amino acids from the TCA cycle intermediates arecarboxylationisomerizationtransaminationdecarboxylation
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Which one of the receptors has the highest affinity for the ligand?$R1$$R2$$R3$$R4$
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The total number of fragments generated by the complete and sequential cleavage of the polypeptide given below by Trypsin followed by $CNBr$ is __________.$Phe-Trp-Met-Gl...
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Match the entries in the $\text{Group I}$ with the entries in $\text{Group II}$.$\begin{array}{|l|l|l|l|} \hline & \text{Group I} && \text{Group II} \\ \hline P. & \text{...
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Match the entries in $\text{Group I}$ with the entries in $\text{Group II}$.$\begin{array}{|l|l|l|l|} \hline & \text{Group I} && \text{Group II} \\ \hline P. & \text{RNA...
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Match the herbicides in $\text{Group I}$ with the target enzymes in $\text{Group II}$ $\begin{array}{|l|l|l|l|} \hline & \text{Group I} && \text{Group II} \\ \hline P. & ...
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Match the entries in the $\text{Group I}$ with the elution conditions in $\text{Group II}$.$\begin{array}{|l|l|l|l|} \hline & \text{Group I} && \text{Group II} \\ \hline...
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Match the cell structures in $\text{Group I}$ with the organisms in $\text{Group II}$.$\begin{array}{|l|l|l|l|} \hline & \text{Group I} && \text{Group II} \\ \hline P. & ...
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Match the antibiotics in $\text{Group I}$ wiith the targets in $\text{Group II}$.$\begin{array}{|l|l|l|l|} \hline & \text{Group I} & & \text{Group II} \\ \hline P. & \t...
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Match the entries in $\text{Group I}$ with the enzymes in $\text{Group II}$.$\begin{array}{|l|l|l|l|} \hline & \text{Group I} && \text{Group II} \\ \hline P. & \text{NAD}...
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Match the commercial microbial sources in $\text{Group I}$ with the products in $\text{Group II}$.$\begin{array}{|l|l|l|l|} \hline & \text{Group I} & & \text{Group II} \...
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The catalytic efficiency for an enzyme is defined as$K_{cat}$$\frac{V_{max}}{K_{cat}}$$\frac{k_{cat}}{K_m}$$\frac{K_{cat}}{V_{max}}$
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Which one of the following is an $ABC$ transporter?multidrug resistance proteinacetylcholine receptorbacteriorhodopsin$ATP$ synthase
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Endogenous antigens are presented on to the cell surface along with$MHC-II$$MHC-I$$F_c\gamma$receptorcomplement receptor
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The role of an adjuvant istoprolong the persistence of antigencross link the antigenincrease the size of antigenavoid inflammation
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Which one of the following aminoacids in proteins does $NOT$ undergo phosphorylation?SerThrProTyr
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The first humanized monoclonal antibody approved for the treatment of breast cancerisRituximabCetuximabBevacizumabHerceptin
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Protein A, which has strong affinity to $F_C$ region of immunoglobulin, is extracted from$\text{Saccharomyces cerevisiae}$$\text{Staphylococcus aureus}$$\text{Streptococc...
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Which one of the following modifications is common toboth protein and DNA?SUMOylationNitrosylationMethylationUbiquitination
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Under alkaline conditions, DNA is more stable than RNA becauseRNA forms secondary structuresRNA is a single stranded moleculeRNA has uracil in place of thymidineRNA is su...
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