Description : 6. In 1953 S L Miller created primitive earth conditions in the laboratory and gave experimental evidence for origin of first form of life from pre existing non living organic molecules. The ... -reducing atmosphere. d) High temperature, volcanic storms, reducing atmosphere and contains NH3 and CH4
Last Answer : d) High temperature, volcanic storms, reducing atmosphere and contains NH3 and CH4
Description : Consider the following statements: 1. The atmosphere of the primitive earth was reducing 2. The primary source of energy for the chemosynthetic reactions on earth that led to the origin of life was the solar energy 3. Liquid water did not ... 1 and 2 (b) 1 and 4 (c) 1, 2, and 3 (d) 1, 3, and 4
Last Answer : Ans:(d)
Description : S.L. Miller an American scientist created electric discharge experiment in a closed flask containing `CH_(4),H_(2),NH_(3)` and water vapour at what te
Last Answer : S.L. Miller an American scientist created electric discharge experiment in a closed flask containing `CH_(4),H_(2),NH_ ... . `200^(@)C` D. `1000^(@)C`
Description : Who among the following demonstrated experimentally that simple organic molecules like sugar s and amino acids could be produced from inorganic molecules if early earth atmosphere is created (a) Donald Brown (b) A.I. Oparin (c) Oscar Miller (d) Stanley Miller
Description : The atmosphere of the primitive earth before origin of life consisted of: (a) Nitrogen, Oxygen, Ammonia, and Water vapour (b) Methane, Ammonia, Hydrogen, and Water vapour (c) Nitrogen, Oxygen, Water, and Carbon dioxide (d) Ammonia, Water, Oxygen, and Hydrogen
Last Answer : Ans:(b)
Description : 5.Miller and Urey performed an experiment to p[rove origin of life.They took gases NH3 and H2 along with (a)N2 and H2O (b)H2O and CH4 (c)CH4 and N2 (d)CO2 and NH3
Last Answer : ANS.(B) H2O and CH4
Description : From his experiments, S.L. Miller produced amino acids by mixing the following in a closed flask. (a) CH4, H2, NH3 and water vapor at 800°C (b) CH3, H2, NH4 and water vapor at 800°C (c) CH4, H2, NH3 and water vapor at 600°C (d) CH3, H2, NH3 and water vapor at 600°C
Last Answer : a) CH4, H2, NH3 and water vapor at 800°C
Description : Life originated first in the primitive oceans. The evidences supporting this view a. Protoplasm and body fluids of all animals contain salt b. Moist simpler and lower animals are aquatic and marine c. Fossils of earliest animals obtained from rocks of marine origin d. All the above
Last Answer : d. All the above
Description : Who gave the first experimental value of G? -General Knowledge
Last Answer : The answer is 'A. Motion Picture'
Last Answer : answer:
Description : Who gave the first experimental value of G?
Last Answer : Cavendish
Description : From the L ineweaver-Burk p lot of Michaelis-Menten equation, Km and Vmax can be determined when V is the reaction velocity at substrate concentration S, the X-axis experimental data are expressed as (A) 1/V (B) V (C) 1/S (D) S
Last Answer : Answer : C
Description : Who gave experimental proof that hydrogen, methane, water and ammoia gave rise to amino acidss :
Last Answer : Who gave experimental proof that hydrogen, methane, water and ammoia gave rise to amino acidss : A. ... Miller B. Charles Darwin C. Lamarck D. Oparin
Description : What experimental evidence did Thomson use to his hypothesis that atoms are made up of even smaller charged particles?
Last Answer : The discovery of electrons is based on the deflection of cathode rays and Thomson believed that the atom is more complex.
Description : The strongest evidence for causality comes from which of the following research methods? a. Experimental b. Causal-comparative c. Correlational d. Ethnography
Last Answer : a. Experimental
Description : Which type of research provides the strongest evidence about the existence of cause-and-effect relationships? a. Nonexperimental Research b. Experimental Research
Last Answer : b. Experimental Research
Description : Which biologist gave most logical biochemical theory of origin of life?
Last Answer : Which biologist gave most logical biochemical theory of origin of life? A. Urey B. Oparin C. Stanley Miller D. Haeckel
Description : $ That branch of biology which deals with the study of origin of life is called biopoiesis. ! Biogenesis the process of origin of life from the pre-ex
Last Answer : $ That branch of biology which deals with the study of origin of life is called biopoiesis. ! Biogenesis the ... wrong D. If both As and R are wrong.
Description : What was the longest/hardest time you've had, living in some primitive conditions?
Last Answer : I did go three weeks without power after a hurricane. In highschool I use to get dropped of in the middle of nowhere with a couple friends and we would camp a couple weeks at a time during the summer. One ... , and two sleeping bags. We also had a knife and a bunch of cans of spaghetti. It was fun.
Description : 124 Which Indian personality served as the President of the UN General Assembly in 1953-54? A. S. Radha Krishan B. Gopalswamy Ayyengar C. V.K Krishna Menon D. Vijayalakshmi Pundit
Last Answer : ANSWER: D
Description : Which Indian personality served as the President of the UN General Assembly in 1953-54? A. S. Radha Krishan B. Gopalswamy Ayyengar C. V.K Krishna Menon D. Vijayalakshmi Pundit
Description : D. David Eisenhower was elected U.S. President (I term) in: (a) 1950 (b) 1952 (c) 1953
Last Answer : (b) 1952
Description : That life arose from interactions of simple chemical compounds on primitive earth, the chemosynthetic theory of life, was proposed by: (a) A.I. Oparin (b) Louis Pasteur (c) Charles Darwin (d) Lamark
Last Answer : Ans:(a)
Description : The wrong statement in relation to experimental method is Options: A) Observation under controlled condition is experiment B) It is method of effective control of variables C) Careful observation of a phenomenon under controlled conditions D) It is an useful method in laboratories
Last Answer : D) It is an useful method in laboratories
Description : The fundamental assumption of experimental method is related with Options: A) Law of single variable B) Law of two variable C) Controlled conditions D) Intermediary variables
Last Answer : A) Law of single variable
Description : What evidence do we have for the origin of life from inanimate matter? -Biology
Last Answer : Stanley L. Miller and Harold C. Urey provided evidence regarding origin of life from inanimate matter. They assembled an atmosphere similar to that existed on early earth. The atmosphere had molecules like ... carbon like amino acids which make-up protein molecules. So, life arose afresh on earth.
Description : When [s] is equal to Km, which of the following conditions exist? (A) Half the enzyme molecules are bound to substrate (B) The velocity of the reaction is equal to Vmax (C) The velocity of the reaction is independent of substrate concentration (D) Enzyme is completely saturated with substrate
Last Answer : Answer : A
Description : 1. In which country were the first Asian Games held? 2. Which game does Anuja Thakur play? 3. Which gland is responsible for the secretion of insulin? 4. The small and marginal farmers will get ... occurs when wind rises up along a hill or mountain barrier? 20. By whom was Kadambari was written?
Last Answer : Answer : 1. India 2. Billiards 3. Pancrease 4. Ganga Kalyan Yojna 5. Chanhu-daro 6. By 1 year at a time 7. 50 K 8. Increasing steadily 9. A dying star 10. Pataliputra 11. Franklin Roosevelt ... group of stars 15. Udayin 16. Limestone and clay 17. Geneva 18. Interest payment 19. Orographic 20. Bana
Description : Life originated by chemosynthesis was proved in the laboratory by – (1) Sanger (2) Pasteur (3) Miller (4) Aristotle
Last Answer : (3) Miller Explanation: The Miller-Urey experiment of 1952 simulated the conditions thought at the time to be present on the early Earth, and tested the chemical origin of life under those ... creation of amino ac-ids was used in this experiment to explain life's origins by chemosynthesis.
Description : Life originated by chemosynthesis was proved in the laboratory by : (1) Sanger (2) Pasteur (3) Miller (4) Aristotle
Last Answer : Miller
Description : The correct sequence for the manufacture of molecules/organic compounds on the primitive earth is (a) NH3, nucleic acid, protein and carbohydrate (b) protein, carbohydrate, water and nucleic acid (c) NH3, protein, carbohydrate and nucleic acid (d) NH3, water, nucleic acid and protein.
Last Answer : (d) NH3, water, nucleic acid and protein.
Description : According to Oparin, which one of the following was not present in the primitive atmosphere of the earth? (a) Methane (b) Oxygen (c) Hydrogen (d) Water vapour
Last Answer : b) Oxygen
Description : This period in earth history is the earliest subdivision of the Paleozoic Era. Many of the oldest known invertebrate fossils occur in this period, the principal types being trilobites, chitinous brachiopods, and primitive graptolites. Name this period.
Last Answer : ANSWER: CAMBRIAN PERIOD
Description : The concept of chemical evolution is based on (a) interaction of water, air and clay under intense heat (b) effect of solar radiation on chemicals (c) possible origin of life by combination of chemicals under suitable environmental conditions (d) crystallisation of chemicals.
Last Answer : (c) possible origin of life by combination of chemicals under suitable environmental conditions
Description : What are your thoughts on this quote “As long as humans exist in the world, the evil side hidden in human nature won’t vanish. So it has to be controlled by using an effective method. And when there is only one origin of where the evil left in this world, a new social order will be established”?
Last Answer : It's dumb, it's reaches a conclusion based on a far out assumption.
Description : The oncogene theory states that transforming genes a. Normally Occur In The Host Genome. b. Can Exist In Viruses. c. Are Not Of Viral Origin. d. All Of The Above (A—C) Are Correct.
Last Answer : d. All Of The Above (A—C) Are Correct
Description : The fossil of Archaeopteryx represents the evidence of origin of animals? -Do You Know?
Last Answer : Archaeopteryx was long considered to be the beginning of the evolutionary tree of birds
Description : The fossil of Archaeopteryx represents the evidence of origin of animals?
Last Answer : Birds from reptiles
Description : In 1953 what was first successfully transmitted in the USA?
Last Answer : Colour Television
Description : When first census was conducted in Pakistan? A. 1951 B. 1952 C. 1953 D. 1954
Last Answer : ANSWER: A