General Knowledge Questions

Histones are highly alkaline proteins found in eukaryotic cell nucleusthat package and order the DNA into structural units called nucleosomes. They are the chief protein components of chromatin, acting as spools around which DNA winds, and playrole in gene regulation.

Ninth Schedule says that the article mentioned in this are immune from judicial review. It is for the larger good of the society, the government cannot be challenged in the court for his actions. Ninth Schedule was added to the Constitution by First Constitutional Amendment, 1951.In a landmark ruling on 11th January 2007, the Supreme Court ruled that all laws (including those in the Ninth Schedule) would be open to judicial review, if they violated the basic structure of the Constitution.

The given sentence is in simple present tense and states a general fact, hence the latter half of the sentence with the blank will also be in the simple present tense. Since the subject in the latter part of the sentence is singular .i.e. 'the number', the verb will be followed accordingly. Hence, option 4 is the correct answer.