Challenger App

No.1 PSC Learning App

1M+ Downloads
According to the passage, what role did chance play in Katalin Kariko’s scientific journey?
The passive voice form of the sentence ‘Top scientific journals rejected their paper’ is _______.
In the sentence ‘She persisted because the science mattered,’ the word ‘because’ is a:
Which of the following best describes Kariko’s professional situation in her early years in the United States?
What does the sentence ‘In science, the absence of funding often means invisibility’ imply?

Identify the part of speech of the underlined word in the sentence:

They began collaborating quietly.

Which word is closest in meaning to ‘dismissed’ as used in the line ‘mRNA was dismissed as unstable and impractical’?
The central scientific idea that Katalin Kariko believed in from the beginning of her career was ________.
A cheetah can run ____ than a dog.
The sentence ‘People respect honest leaders’ - can be expressed without changing the meaning as ________.
Identify the incorrect part of the sentence: Unless you don’t follow the rules, you will be punished.
Choose the correct meaning of the phrasal verb in the sentence: The meeting was called off due to heavy rain.

He finally decided to call it a day after working for ten hours. The idiom in the sentence means __________

Identify the wrongly paired group.
Choose the correctly spelt word:

You should consult a doctor. The underlined word in the sentence implies ____.

Choose the correct reported form of the sentence: The teacher said, "the exam will begin at 10 a.m."
The most important step while drafting a letter is __________ .