Question 1 :
According to spontaneous generation theory, the sequence of origin of life may be considered as
Question 3 :
By using only one of the two strands of DNA, mRNA is produced this process is called as _____
Question 5 :
The idea of Natural Selection as the fundamental process of evolutionary changes was reached
Question 6 :
The transmission of genetically based characteristics from parents to offspring is known as
Question 9 :
The most vital process for the existence of life on earth is
Question 12 :
The complex organic compounds that may have first evolved in the direction of origin of life on earth, may have been
Question 14 :
The process of formation of mRNA from DNA is known as
Question 18 :
In the early Earth, water and $CO_2$ were produced by the combination of $O_2$ with
Question 19 :
Which of the following was most likely to have been absent in free form in the primordial atmosphere at the time of origin of life?
Question 22 :
The scientist related with the over throw of the "Theory of spontaneous generation" and experiment with swan-necked flask is
Question 24 :
During origin of life, nucleoprotein gave most probably the first sign of
Question 25 :
The innate tendency of offspring to resemble their parents is called _____________.
Question 26 :
Formation of which complex molecule was noticed by Urey and Miller, when they subjected substances like $NH_3$, $CH_4$, $H_2O$ etc. to electric discharge?
Question 29 :
The four elements that make up 99% of all elements found in a living system are
Question 33 :
An experiment to prove that organic compounds were the basis of life, was performed by<br>
Question 34 :
Transfer of information from molecule of DNA to mRNA is called as
Question 36 :
The first living form resulting from the final stage of chemical evolution of life is called as<br/>
Question 37 :
If the sequence if the nitrogenous bases on template strand is ATCTGGCGT, what would be the sequence of mRNA transcribed from it?
Question 38 :
If the number of amino acid in a polypeptide chain is $100$, what will be the number of nucleotides in its cistron?
Question 41 :
The transmission of characters from the parents to their offspring is called as<br/>
Question 43 :
According to available evidence, life evolved through the process of _______ chemical evolution.
Question 44 :
Which one of the following is not a feature of ribosomes?
Question 46 :
In Hershey and chase, Experiment, what finding led to the conclusion that DNA is the genetic material.
Question 51 :
.................. performed experiment to prove modern theory of origin of life.
Question 52 :
During primitive times oceans contained (I) fishes only, (II) algae only, (III) water only (IV) ammonia, methane and minerals only.
Question 55 :
Choose the correct answer from the alternatives given :<br>How far is each base pair from the next one in DNA double helix model?
Question 56 :
The continuity of features from one generation to another is known as
Question 58 :
The process involved in the RNA formation on the DNA template is called as<br/>
Question 60 :
Which compounds were formed in the direction of the origin of life?
Question 63 :
An individual can pass on to its progeny the experiences of its lifetime.<br>
Question 67 :
The first life appeared in marine water was called as protovirus, eobiont or protocell. <span>It was</span>
Question 68 :
Besides activating the egg, another role of a sperm is to carry
Question 69 :
Which of the following was not found in free form during origin of life?
Question 70 : <p>The process by which DNA of nucleus passes genetic information to mRNA is called as</p>
Question 71 :
Choose the correct answer from the alternatives given.<br>The difference between RNA and DNA is because of:
Question 72 :
Genetic information are transferred from nucleus to cytoplasm of cell through<br>
Question 74 :
Which of the following mechanism is disrupted by the antibiotic tetracycline which works by binding to rRNA in prokaryotes?
Question 75 :
An old view about evolution states that the organisms were created by a super organism in the same condition as they exist now. This theory is called as
Question 76 :
The question of origin of life is still unanswered because scientists are unable to know
Question 77 : Match the following.<div><span>Identify the sequence of list II with respect to list I.</span></div><div><span><br/></span><div><table class="wysiwyg-table"><tbody><tr><td><br/></td><td>List I<br/></td><td>List II<br/></td></tr><tr><td>(A)<br/></td><td> Cosmozoic theory<br/></td><td>Aristotle<br/></td></tr><tr><td>(B) <br/></td><td> Biogenesis theory</td><td>Louis Pasteur <br/></td></tr><tr><td>(C)<br/></td><td> Theory of spontaneous generation<br/></td><td>Cuvier<br/></td></tr><tr><td>(D)<br/></td><td> Theory of catastrophism<br/></td><td>Arrhenius<br/></td></tr><tr><td><br/></td><td><br/></td><td><br/></td></tr></tbody></table><br/></div></div>
Question 79 :
For the study of life, study of organization of molecules in the living matter is essential because
Question 82 :
Assertion: The earliest organisms that appeared on the earth were non-green and presumably anaerobes.
Reason: The first autotrophic organisms were the chemoautotrophs that never released oxygen.
Question 83 :
Assertion: The primitive atmosphere was reducing one, i.e., without oxygen.
Reason: In the primitive atmosphere, oxygen was involved in forming ozone.
Question 86 :
The first formed organism (ribo-organism) used only .............. for catalyzing reactions.
Question 87 :
When earth originated, there was large amount of methane and other hydrocarbons but now in the present atmosphere it is replaced by
Question 88 :
During the course of origin of life what was the sequence of substances which appeared on earth?
Question 90 :
Central dogma of molecular biology was modified with the discovery of
Question 91 :
If sequence on DNA chain is ATG CAT TGC ATG correct sequence on m-RNA?
Question 92 :
Assertion: The earliest organisms that appeared on the earth were non-green and presumably anaerobes.
Reason: The first autotrophic organisms were the chemoautotrophs that never released oxygen.
Question 95 :
The conditions under which amino acid molecules might have been become bonded together to form the first protein molecules was suggested by
Question 98 :
What is the correct arrangement of periods of Palaeozoic era in ascending order in geological time scale ?
Question 101 :
Assertion: We have lost all the direct evidence of origin of life.
Reason: The persons responsible for protecting evidences were not skilled.
Question 102 :
Match the columns.<br/> Column I Column II<br/>I. Recent horse A. Connecting link between animals and plants<br/>II. <i>Peripatus </i>spp B. <i> Equus</i><br/>III. First forest C. Connecting link between annelids and arthropods<br/>IV. <i>Euglena </i> D. Devonian period
Question 103 : Theory of abiogenesis or spontaneous generation was finally <div>disapproved by <br/></div>
