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
(a) 29%
(b) 15%
(c) 10%
(d) 45%
Answer / alakesh
Ans is "a" . In (t/2) seconds the fraction of the initial
quantity of the element so far decayed is nearly 29%.
| Is This Answer Correct ? | 51 Yes | 9 No |
What is a ?clean and run? reaction?
In a balanced chemical equation (a) Atoms are conserved (b) Molecules are conserved (c) Moles are conserved (d) Reactant and product molecules are preserved.
Suppose the Blast search returned 100 hits. Of these, 17 were false positives and we knew that there were 165 sequences in the database which should have returned a hit with our sequence. How many false negatives were there, and what is the sensitivity and selectivity of Blast in this instance?
If the letters of the word ?rachit? are arranged in all possible ways and these words are written out as in a dictionary, what is the rank of the word ?rachit?. (a) 485 (b) 480 (c) 478 (d) 481
How is the respiratory system applied to the sport paintball?
How many grams of NaOH will react with 0.2 equivalent of HCl?
How many base pairs does the simplest bacteria have?
What is Mathematical Biology?
Which of the following plots would be a straight line ? (a) Logarithm of decay rate against logarithm of time (b) Logarithm of decay rate against logarithm of number of decaying nuclei (c) Decay rate against time (d) Number of decaying nuclei against time
How did you get into the field of bioinformatics?
Can independent origins be established for two families of transport systems having no sequence or motif similarities without three-dimensional structural data?
What is the main idea of maximum parsimony in phylogenetic tree construction? What are the drawbacks?