BIOLOGY ORIGIN AND EVOLUTION OF LIFE QUIZ-1
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..
Q1. Which of the set represents vestigial organs?
Solution
(d) Vestigial structures are those structures, which were functionally active in ancestral organisms but now become non-functional, e.g., vermiform appendix, ear muscles and coccyx.
(d) Vestigial structures are those structures, which were functionally active in ancestral organisms but now become non-functional, e.g., vermiform appendix, ear muscles and coccyx.
Q2.Spontaneous generation theory was given by
Solution
(d) Spontaneous generation theory was given by Aristotle. According to this theory, life originated not only from living but also from non-living forms, spontaneously.
(d) Spontaneous generation theory was given by Aristotle. According to this theory, life originated not only from living but also from non-living forms, spontaneously.
Q3. Which compound has very important role in prebiotic evolution?
Solution
(c) J B S Haldane (1920) used the term ‘prebiotic soup’ or ‘hot dilute soup of organic substances’ for oceanic water containing mixture of simple organic compounds. Methane(CH_4) was probably the first organic compound and hydrogen cyanide was formed later
(c) J B S Haldane (1920) used the term ‘prebiotic soup’ or ‘hot dilute soup of organic substances’ for oceanic water containing mixture of simple organic compounds. Methane(CH_4) was probably the first organic compound and hydrogen cyanide was formed later
Q4. Who proposed the Big-Bang theory?
Solution
(b) Origin of Universe There are several theories regarding the origin of universe but most accepted is Big-Bang theory. Big-Bang Theory This theory was proposed by Abbe Lemaitre in 1931. According to the Big-Bang theory about 15 billion years ago, cosmic matter was in a condensed form. Explosion took place which broke the condensed matter and scattered its fragments into space at an enormous velocity making a Big-Bang sound and thus the theory came to be known as the Big-Bang theory
(b) Origin of Universe There are several theories regarding the origin of universe but most accepted is Big-Bang theory. Big-Bang Theory This theory was proposed by Abbe Lemaitre in 1931. According to the Big-Bang theory about 15 billion years ago, cosmic matter was in a condensed form. Explosion took place which broke the condensed matter and scattered its fragments into space at an enormous velocity making a Big-Bang sound and thus the theory came to be known as the Big-Bang theory
Q5.How old is our universe?
Solution
(b) The universe is vast relatively speaking the earth.Itself is almost only a speck. The universe is very old almost 20 billion years old. Huge dusters of galaxies comprises the universe
(b) The universe is vast relatively speaking the earth.Itself is almost only a speck. The universe is very old almost 20 billion years old. Huge dusters of galaxies comprises the universe
Q6. Australopithecus is also called
Solution
(c) Australopithecus (first ape man) Australopithecus africanus appeared about 5 million years ago and is also called African ape man. He was about 1.5 meters high and had human as well as ape characters. Australopithecus africanus had also gave rise to man like apes called Australopithecus robustus and Australopithecus boisei along a separate line end that ends blindly
(c) Australopithecus (first ape man) Australopithecus africanus appeared about 5 million years ago and is also called African ape man. He was about 1.5 meters high and had human as well as ape characters. Australopithecus africanus had also gave rise to man like apes called Australopithecus robustus and Australopithecus boisei along a separate line end that ends blindly
Q7.Which of the following is not a concept of Lamarck?
Solution
(b) Rate and survival of organism is different due to variation is not a concept of Lamarckism.
(b) Rate and survival of organism is different due to variation is not a concept of Lamarckism.
Q8.The classical example of adaptive radiation in development of new species is
Solution
(d) The development of different functional structures from a common ancestral from is called adaptive radiation or divergent adaptations, eg, 1.Darwin’s finches of the Galapagos islands 2.Australian marsupials 3.Limbs of mammals.
(d) The development of different functional structures from a common ancestral from is called adaptive radiation or divergent adaptations, eg, 1.Darwin’s finches of the Galapagos islands 2.Australian marsupials 3.Limbs of mammals.
Q9.Darwinian fitness can be estimated by
Solution
(b) Darwinian fitness can be estimated by the number of offspring produced by different individual in a population. The organisms which have favourable variation in accordance with environment have more offspring than the other which don’t variations in accordance with environment
(b) Darwinian fitness can be estimated by the number of offspring produced by different individual in a population. The organisms which have favourable variation in accordance with environment have more offspring than the other which don’t variations in accordance with environment
Q10. Which was absent in the atmosphere at the time of origin of life?
Solution
(c) Primitive atmosphere of earth was reducing containing methane, ammonia, hydrogen and water vapour. There was no free oxygen.
(c) Primitive atmosphere of earth was reducing containing methane, ammonia, hydrogen and water vapour. There was no free oxygen.
