Biotechnology and microbes in human welfare Quiz-7
Dear Readers,NEET is the most famous and important medical entrance examination held in our country. This exam is an objective type, an offline test which includes 4 sections namely– Physics, Chemistry, Botany, and Zoology. The maximum marks that can be scored are 720 marks and have 180 questions. About half of the paper consists of questions from Biology, as the NEET exam essentially focuses on capacitating students to go for seats in medical courses. One of the most significant and crucial sections in the NEET exam is of Biology. It comprises of theories, descriptions, discoveries, diagrams, definitions, explanations of differences, and relations. The majority of the topics covered in the NEET syllabus are from the NCERT syllabus of Class 11 & 12 and other related sources become part of the rest of the syllabus. Clear Exam curates a list of articles selected by professionals who recommend the highly vital topics for NEET exams. The table below takes you directly to the respective topic where the in-depth article and the MCQs are available for an easy and productive learning experience. Prior to solving NEET question papers or practicing mock tests, you must ensure to study the basic concepts in NEET and practice a few sample questions related to this exam. Students will be covered for all their studies as the topics are available from basics to even the most advanced..
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Q1. ‘Himgiri’ developed by hybridization and selection for disease resistance against rust pathogens is a variety of
Solution
c) ‘Himgiri’ is a wheat variety resistant to leaf and stripe rust, hill bunt etc.
c) ‘Himgiri’ is a wheat variety resistant to leaf and stripe rust, hill bunt etc.
Q2.
Mycorrhiza promotes plant growth by
Solution
a) Mycorrhiza promotes plant growth by absorbing inorganic ions from soil. Fungi form symbiotic association with the roots of higher plants called mycorrhiza. The fungal hyphae absorb phosphorus from soil and passes it to the plant
a) Mycorrhiza promotes plant growth by absorbing inorganic ions from soil. Fungi form symbiotic association with the roots of higher plants called mycorrhiza. The fungal hyphae absorb phosphorus from soil and passes it to the plant
Q3.
Which of the following is used as biofertiliser?
I. Cyanobacteria II. Yeast
III. Symbiotic bacteria IV. Free living bacteria
Choose the correct option
I. Cyanobacteria II. Yeast
III. Symbiotic bacteria IV. Free living bacteria
Choose the correct option
Solution
b) Cyanobacteria or blue-green algae is the most suitable source of biofertiliser, particularly in rice fields, e.g., Nostoc, Anabaena Rhizobium is a symbiotic bacterium that lives in the root nodules of legumes and fixes atmospheric nitrogen into organic compound Azospirillum and Azotobacter are free-living bacteria which absorb free nitrogen from soil, air and convert it into salts of nitrogen like amino acids and enrich soil nutrients
b) Cyanobacteria or blue-green algae is the most suitable source of biofertiliser, particularly in rice fields, e.g., Nostoc, Anabaena Rhizobium is a symbiotic bacterium that lives in the root nodules of legumes and fixes atmospheric nitrogen into organic compound Azospirillum and Azotobacter are free-living bacteria which absorb free nitrogen from soil, air and convert it into salts of nitrogen like amino acids and enrich soil nutrients
Q4. The water soluble protein associated with silk thread is
Solution
b) Silk thread is obtained from the cocoon of Bombyx mori. It contains a water soluble protein, sericin.
b) Silk thread is obtained from the cocoon of Bombyx mori. It contains a water soluble protein, sericin.
Q5.
Shakti, Rattan and Protina are three important lysine rich varieties of
