CSS Zoology Questions & Answers


Q.  Which of the following facts does not hold truth with reference to De Vries Theory of organic evolution:

a. New species evolve by sudden and distinct heritable changes called by mutations and not by natural selection
b. First individual showing is called "mutant'. It is pure breeding as well as transmits mutations to its progeny and thus starts a new species
c. All organisms have tendency to mutate but the rate of mutation varies from time to time depending upon environmental and physiological conditions
d. The development and deficiency of organs are in proportion to use and disuse of these organs


ANSWER: See Answer
 
No explanation is available for this question!
MCQs:  Lemuroids which arose from tree shrews showed important advancements:
Category: Central Superior Service Test Mcqs (CSS),   Published by: teswesm
MCQs:  The character which was not in the direction of evolution of human species is:
Category: Central Superior Service Test Mcqs (CSS),   Published by: teswesm
MCQs:  The character of Tarsius in the direction of evolution of man-like primates was its:
Category: Central Superior Service Test Mcqs (CSS),   Published by: teswesm
MCQs:  In which of the following form the highly mobile could rotate head so much that it can face backwards (180?):
Category: Central Superior Service Test Mcqs (CSS),   Published by: teswesm
MCQs:  "Tarsioids were found to live in pairs and the female had menstrual cycle" whether the statements is:
Category: Central Superior Service Test Mcqs (CSS),   Published by: teswesm
MCQs:  "Old World Monkeys led to evolution of apes and man" this statement can be supported by one of the following facts that they have:
Category: Central Superior Service Test Mcqs (CSS),   Published by: teswesm
MCQs:  Earliest fossil Old World Monkey leading evolution of apes and man was:
Category: Central Superior Service Test Mcqs (CSS),   Published by: teswesm
MCQs:  Oligopithecus excavated from Oligocene rocks of Faiyam Depression in Sahara Desert near Cairo in Egypt (Africa) possessed:
Category: Central Superior Service Test Mcqs (CSS),   Published by: teswesm
MCQs:  Which of the following characteristics of apes show close phylogenetic relationship with man:
Category: Central Superior Service Test Mcqs (CSS),   Published by: teswesm
MCQs:  Evolution of man was possible perhaps because our ape-like ancestors:
Category: Central Superior Service Test Mcqs (CSS),   Published by: teswesm
MCQs:  Which of the following is not in the spe-stock of human evolution;
Category: Central Superior Service Test Mcqs (CSS),   Published by: teswesm
MCQs:  Name given to fossil man of Shivalic Hills in India is:
Category: Central Superior Service Test Mcqs (CSS),   Published by: teswesm
MCQs:  Which one of the following fossils was quite like Dryopithecus but showed some divergence towards human evolutionary line and has been a promising one to represent the starting point at which human line of evolution branched off from ape line about 1.5 crore years ago:
Category: Central Superior Service Test Mcqs (CSS),   Published by: teswesm
MCQs:  First probable fossil man was:
Category: Central Superior Service Test Mcqs (CSS),   Published by: teswesm
MCQs:  Zoological name of man is:
Category: Central Superior Service Test Mcqs (CSS),   Published by: teswesm
MCQs:  Homo erectus erectus is scientific name of:
Category: Central Superior Service Test Mcqs (CSS),   Published by: teswesm
MCQs:  With which of the following fossils, first evidence of burial of dead have been found:
Category: Central Superior Service Test Mcqs (CSS),   Published by: teswesm
MCQs:  In which of the following continent most of the fossils of primitive man have been excavated:
Category: Central Superior Service Test Mcqs (CSS),   Published by: teswesm
MCQs:  Which of the following ancestors of man first stood erect:
Category: Central Superior Service Test Mcqs (CSS),   Published by: teswesm
MCQs:  Old World Monkeys, apes and man had certain similarities which are:
Category: Central Superior Service Test Mcqs (CSS),   Published by: teswesm