CLEAR
Toprankers-Info

+91 7676564400

Mobile App

Get it on Google Play
Discussions
Select Date
Tags:

Articles

Discussions
Submit Discussion
Awadhesh Ojha

· started a discussion

· 1 Months ago

wrong (Question: 160791.0 )

permanent

Question:

DIRECTIONS: A passage is given with the questions following it. Read the passage carefully and choose the best answer to each question out of the four alternatives and click the button corresponding to it.


Man’s dependence on plants is indispensable. It is this dependence for food, shelter and clothing that has led him to explore all possible ways to preserve plants from being lost to the ravages of natural or man-made calamities. Accordingly, man has used various methods to overcome these calamities. While doing so, scientists hit upon a technique whereby plants cannot be restored from being lost, but can be developed into a complete plant from a small plant part. This technique, called tissue culture, subsequently proved to be a boon for mankind.


Basically, tissue culture is a technique by which small pieces of different parts of a plant body are grown on a nutritional media, under completely sterile conditions. These explants divide and gradually develop either into an unorganized mass of cells called callus or after a few cell divisions, differentiate to form full-fledged plants. This concept of tissue culture dates back to 1878. Scientists like Harberlandt in 1902, postulated that cultivation of artificial embryos can be possible, depending on the nutritional media.

Man’s dependence on plants is:

Options:
A) essential
B) inessential
C) temporary
D) permanent
Solution:
Ans: (a) The answer is clear from the first sentence of the passage.

-logo
We at aim to provide most comprehensive content & test for practice which is carefully divided into various chapters and topics to help you focus on your weak areas.Our Practice mock test gives you unmatched analytics to help you realize your strong areas,time management and improvement areas.Our Short & Crisp notes on each topic will help you to quickly revise the topic along with the tips & tricks of the exams.
More About
-Info
-Info

Mobile App

Get it on Google Play
About Us Campus Ambassador Careers Contact Us Refund Policy

All Rights Reserved Top Rankers

User Policy
Disclaimer
Terms & Conditions