261.
Miller successfully demonstrated formation of amino-acids by electric discharges in the mixture of hydrogen, ammonia, water and A
Ether
B
Ethane
C
Methane
D
Carbon di oxide
Answer :
Methane
View Solution
Discuss Question
No explanation is given for this question. Let's discuss the answer together.
262.
Which of the following represents order of Horse'? A
Perissodactyla
B
Caballus
C
Ferus
D
Equidae
Answer :
Perissodactyla
View Solution
Discuss Question
No explanation is given for this question. Let's discuss the answer together.
263.
Which bird can not fly A
Stark
B
Emu
C
Duck
D
Peacock
Answer :
Emu
View Solution
Discuss Question
No explanation is given for this question. Let's discuss the answer together.
264.
Mutations can be artificially induced by A
Radiations
B
Chemicals
C
None of them
D
Both of them
Answer :
Both of them
View Solution
Discuss Question
No explanation is given for this question. Let's discuss the answer together.
265.
Common origin of man and chimpanzee is best shown by A
Banding pattern in chromosomes number 3 and 6
B
Cranial capacity
C
Binocular vision
D
Dental formula
Answer :
Banding pattern in chromosomes number 3 and 6
View Solution
Discuss Question
No explanation is given for this question. Let's discuss the answer together.
266.
Which of the following is most important for speciation ? A
Seasonal isolation
B
Reproductive isolation
C
Behavioural isolation
D
Tropical isolation
Answer :
Reproductive isolation
View Solution
Discuss Question
No explanation is given for this question. Let's discuss the answer together.
267.
Name of the scientist who gave Mutation Theory A
Wallace
B
Mathus
C
Darwin
D
De Vries
Answer :
De Vries
View Solution
Discuss Question
No explanation is given for this question. Let's discuss the answer together.
268.
Largest cranial capacity was found in A
Peking man
B
Neanderthal man
C
Java man
D
Cro-magnon man
Answer :
Cro-magnon man
View Solution
Discuss Question
No explanation is given for this question. Let's discuss the answer together.
269.
The process by which organisms with different evolutionary history evolve similar phenotypic adaptations in response to a common environmental challenge, is called : A
Convergent evolution
B
Non-random evolution
C
Adaptive radiation
D
Natural selection
Answer :
Convergent evolution
View Solution
Discuss Question
No explanation is given for this question. Let's discuss the answer together.
270.
Half life period of $$C$$ is about A
500 years
B
5000 years
C
50 years
D
5 × 104 years
Answer :
5000 years
View Solution
Discuss Question
No explanation is given for this question. Let's discuss the answer together.