CBSE Class 12 Biology Evolution MCQs Set 04

Question. Galaxies contain
(a) Cloud of gas and dust
(b) Stars
(c) Both (a) and (b)
(d) None of these

Answer: C

Question. Early the earth has which gases
(a) Water vapor and methane
(b) Carbon dioxide
(c) Ammonia
(d) All of these

Answer: D

Question. Early on earth oxygen combined with which gases to produce carbon dioxide and water
(a) Methane
(b) Ammonia
(c) Water vapour
(d) Both (a) and (b)

Answer: D

Question. The origin of universe is said to be by a
(a) Series of blast
(b) A single strong blast
(c) Volcano eruption
(d) None of these

Answer: B

Question. Earth was supposed to be formed
(a) 4500 million years back
(b) 450 million years back
(c) 45 billion years back
(d) None of these

Answer: A

Question. According to which concept unit of life were transferred to different Planets
(a) Panspermia
(b) Theory of spontaneous generation
(c) Theory of special creation
(d) Biogenesis

Answer: B

Question. Concept that life came out of decaying and rotting matter like straw, mud etc. was called
(a) Panspermia
(b) Theory of spontaneous creation
(c) Theory of special creation
(d) Biogenesis

Answer: B

Question. Miller does not used which molecules as substrate
(a) Methane
(b) Ammonia
(c) Ozone
(d) Water vapour

Answer: C

Question. The first non–cellular form of life have originated
(a) 3 million years back
(b) 3000 million years back
(c) 30 billion years back
(d) 45 million years back

Answer: B

Question. Oparin and Haldane proposed that the first form of life could have come from
(a) Pre–existing living organism
(b) Pre–existing nonliving matter
(c) Pre–existing nonliving organic molecules
(d) Panspermia

Answer: B

Question. Oparin and Haldane belonged to which country?
(a) America, Russia
(b) England, Russia
(c) U.K., England
(d) Russia, England

Answer: D

Question. S.L. Miller observed formation of which organic molecules in his Experiment
(a) Starch
(b) Amino acids
(c) Nucleic acids
(d) Fats

Answer: B

Question. Which of the following is not true for theory of special creation?
(a) All living organisms we see today were created as such
(b) Diversity was not the same since creation
(c) Diversity will remain same in the future
(d) The earth is about 4000 years old

Answer: B

Question. Steller distance are measured in
(a) Meters
(b) Years
(c) Light years
(d) Days

Answer: C

Question. Charles Darwin concluded after his sea voyage
(a) Existing living forms share similarities to varying degrees among themselves
(b) Existing living forms share similarities to life forms that existed millions of years ago
(c) Existing living forms are totally dissimilar with life forms that existed millions of years ago
(d) Both (a) and (b)

Answer: D

Question: Narrowing and increasing height of peak in a population distribution curve indicates
a) More individuals acquire value other than mean character value
b) More individuals acquire mean character value
c) More individuals acquire peripheral character value at both the ends of distribution curve
d) None of these
Answer: b

Question: The first cellular form of life appeared on earth
a) 3000 mya
b) 2000 mya
c) 4000 mya
d) 4500 mya
Answer: b

Question: Reptiles evolved from
a) Fish
b) Mammals
c) Amphibians
d) Aves
Answer: c

Question: First organism that invaded land were
a) Animals
b) Plants
c) Both together
d) None of these
Answer: b

Question: Which of the following factors do not affect the Hardy–Weinberg Principle?
a) Gene flow
b) Use and disuse of organs
c) Genetic drift
d) Natural selection
Answer: b

Question: Coal deposits were formed by felling of
a) Angiosperm
b) Sea weeds
c) Bryophytes
d) Pteridophytes
Answer: d

Question: When migration of a section of population takes place gene frequencies change
a) At the place where the new population migrated
b) At the place from where the population have migrated
c) Both (a) and (b)
d) Remains same at both the places
Answer: c

Question: The giant ferns belong to
a) Gymnosperms
b) Angiosperms
c) Pteridophytes
d) Bryophytes
Answer: c

Question: If natural selection leads to stabilizations this means
a) More individuals acquire mean character value
b) More individuals acquire value other than mean character value
c) More individuals acquire peripheral character value at both the ends of distribution curve
d) None of these
Answer: a

Question: In 1938, an extinct fish (Coelacanth) was caught in which continent
a) South America
b) South Africa
c) Australia
d) South Asia
Answer: b