Can independent origins be established for two families of transport systems having no sequence or motif similarities without three-dimensional structural data?
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How to find coexpressed genes on NCBI GEO?
What is the idea behind ?weighting? sequences in the package CLUSTAL W for multiple alignment? How are these weights calculated?
Which of the following is most acidic? (a) C2H5OH (b) CH3CHOHCH3 (c) Ethanol (d) CH3OH.
Define COG and KOG ?
A certain radioactive element A, has a half life = t seconds. In (t/2) seconds the fraction of the initial quantity of the element so far decayed is nearly how much?
Did integral membrane transport proteins arise as an independent protein class or from other types of proteins?
What is the product of the irrational roots of the equation (2x-1)(2x-3)(2x-5)(2x-7)=9?
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When a bicycle is in motion, the force of friction exerted by the ground on the two wheels is such that it acts a) In the backward direction on the front wheel and in the forward direction on the rear wheel. (b) In the forward direction on the front wheel and in the backward direction on the rear wheel. (c) In the backward direction on both the front and rear wheels. (d) In the backward direction on both the front and rear wheels.
How to compare a DNA sequence to itself by using it for both the 1st and 2nd sequence?
Integrate 3x + 5 / (x3-x2-x+1)?
In Reimer-Tiemann?s reaction, the reaction intermediate is (a) Carbene (b) Dichloro carbene (c) Carbonion (d) Carbonium ion.