Question
Seven musicians out of which 3 are from the same band
and the rest are solo artists are to be seated in a row. Find the number of ways in which the three band members do not sit together.Solution
Total number of arrangements = 7! = 5040 ways
Group the 3 band members: arrangements within group = 3! = 6 ways
Arrange 5 items = 5! = 120 ways
Therefore, required number of ways = 5040 – (6 × 120) = 4320 ways
Which of the following statements about DNA replication is correct?
The alimentary canal is basically a long tube extending from the ______ to the ______.
- What is the primary function of villi in the small intestine?
Which one of the following is not a process of DNA recombinant technology ?
Which muscle is recognized as the longest in the human body?
How many transmembrane alpha-helices are present in the G-protein coupled receptors?
Haemoglobin binds to oxygen in:
Which antibodies are present in individuals with blood group AB?
_______is a pure substance.
In Hershey and Chase experiment, some viruses grew on medium that contained :
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