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In each of the following question below are given some statements followed by some conclusions. Taking the given statements to be true even if they seem to be at variance from commonly known facts, read all the conclusions and then decide which of the given conclusion logically follows the given statements. Statements: I. Some tooth are paste. II. Some paste are gel. Conclusions: I. Some tooth are gel. II.All paste are gel. III. All tooth are gel.
Consider the following statements regarding ores: i. Highly reactive metals are separated from their ores by electrolysis. ii. Metals of medium reactivity are separated from their ores by reduction. iii. Metals of least reactivity are separated from their ores by roasting
With reference to the movement of molecules of fluid in plant, consider the following statements.
1. Diffusion is the movement of molecules of a substance from the region of their higher concentration to the region of their lower concentration.
2. Osmosis is a process in which the water molecules move through a semipermeable membrane from the region of their lower concentration to the region of their higher concentration.
Which of the statement(s) given above is/are correct ?
At a stationary shop, it costs Tk. 185 for 4 gel-pen, 8 ball -point pens and 1 marker pen and Tk. 315 for 7 gel-pens, 15 ball point pens and 1 marker pen. What would be the cost of 1 gel-pen, 1 ball -point pen and 1 marker pen?
In the following question, sentences of a paragraph have been jumbled and labeled as P, Q, R, and S. You are required to rearrange the jumbled sentences of the paragraph and mark your response accordingly by selecting the correct option. S1: There's nothing new in the idea that adolescence is a difficult period for everyone the adolescents themselves, of course, as well as for their parents P. Quite simply, the two generations live worlds apart. Now, psychologists are beginning to understand the biological basis for this eternal conflict. Q. Teenagers' brains really are different from those of their parents and a fully adult brain may not develop until well after the teenage years. R. For their parts, adolescents can't understand what their parents are worried about; they find their tastes and responsible concerns boring and outdated S. From an adult point of view, adolescents are difficult, rebellious, irresponsible, often selfish, and self-absorbed, prone to dangerous behaviour that risks their health, their life, and their possibility of future happiness. S6: This new knowledge, it is hoped, will help all of us deal better with the difficult and often painful years of transition from childhood to adulthood.
In the process of gel electrophoresis, the molecules are separated into __________
In exclusion chromatography, solute molecules are separated based on ____________
Smaller molecules elute faster than larger molecules during gel filtration.
Consider the following statements regarding water: 1. Water is an polar molecule 2. Water molecules align themselves in an electric field 3. Water molecules vary their alignment if the applied electric polarity changes with time  4. Water molecules align themselves in an magnetic field Which of the above statements are correct?
Gel-filtration chromatography separates proteins based on their ___________________