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Which of the following is a limitation of mutation breeding?
It creates genetic variability
It can improve crop traits
Mutations are random and often undesirable
It can be used in combination with other breeding techniques
Polymerase Chain Reaction (PCR) is a powerful tool. All of the following are achievable using PCR EXCEPT:
Amplifying DNA from a single cell
Detecting viral DNA in a blood sample
Creating multiple copies of a specific gene
Directly sequencing proteins
Analyse the following statements and identify the correct options given below
I. Two kingdom system of classification did not distinguish between the eukaryotes and prokaryotes, unicellular and multicellular organism and green algae and fungi.
II. The two kingdom classification used for a long time was found inadequate
Both statements I and II are correct
Both statements I and II are incorrect
Statement I is correct and II is incorrect
Statement I is incorrect and II is correct
Mendeleef’s Periodic Table is upset by the fact that
Many elements has several isotopes
Noble gases do not form compounds
Some groups stand divided into two sub groups A and B
Atomic weights of elements are not always whole numbers
When air is blown to balloon (at constant temperature) its pressure and volume both increases. This violates:
Boyle’s law
Charles’ law
Gas law
None of these
Kjeldahl’s method cannot be used for the estimation of nitrogen in:
Pyridine
Nitrocompounds
Azo compounds
All of these