Stanley Miller performed an experiment to prove the origin of life. They took gases NH3 and H2 along with
N2 and H2O
H2O and CH4
CH4 and N2
CO2 and NH3
B.
H2O and CH4
Stanley Miller using CH2 :NH3 :H2 gases in the ratio of 2 : 2 : 1 and water vapours synthesised many simple organic compounds including amino acids, glycine, alanine and aspartic acid. According to him, life originated from NH3, CH2, H2 and H20.
Which one of the following is vestigeal organ of human
Hair
Intestine
Wisdom teeth
Muscle of glottis
Example of analogous organs is :
wings of bird and insect
forelimbs of horse and man
teeth of elephant and man
none of the above
Documented microfossils have been found that are as old as
2.5 billion years
1.5 billion years
3.5 billion years
2.5 million years
During starvation what will be sequence of ending of food stuffs ?
Carbohydrates - Fat- Protein
Carbohydrate - Protein - Fat
Fat - Protein - Carbohydrate
Fat - Carbohydrate- Protein
Set which includes only analogous organs is
wings of butterfly, housefly and bat
hindlegs of horse, grasshopper and bat
wings of butterfly and wingspread of bat and birds
mandibles of cockroach, mosquito and honey bee
Which one is not correct?
Human - Ureotelic
Birds - Uricotelic
Lizards - Uricotelic
Whale - Ammonotelic
