Set which includes only analogous organs is :
wings of butterfly, housefly and bat
hindlegs of horse, grasshopper and bat
wings of btterfly and Wingspread of bat and birds
mandibles of cockrach, mosquito and honey bee
'Convergent Evolution' is shown by :
homologous organs
analogous organs
vestigial organs
above three
On high mountains, difficulty in breathing is due to :
decrease in partial pressure of O2
decrease in amount of O2
increase in CO2 conc
all of the above
Example of Analogous organs is :
wings of bird and insect
forelimbs of horse and man
teeth of elephant and man
none of the above
e -DNA is formed from m-RNA by which enzyme:
restriction endonuclease
reverse transcriptase
DNA polymerase
RNA polymerase
Mutation is more common when it is present in:
dominant condition
recessive condition
constant in population
none of the above
In DNA, which is absent ?
Adenine
Guanine
Uracil
Cytosine
C.
Uracil
Uracil is absent in DNA. It is present in RNA, instead of thymine.
In DNA, adenine and guanine are purines and thymine and cytosine are pyrimidines.
In RNA, uracil and cytosine makes pyrimidine.