81.
Double helical structure of DNA was shown by

82.
The complete set of chromosome inherited from generation to generation is

83.
Test cross ratio in case of duplicate gene action will be

84.
Global Gene Bank of Potato is located at

85.
The hydrostatic pressure resulting from the entry of water into a cell due to osmosis is known as

86.
The inheritance of acquired characters was proposed by

87.
Cabbage, cauliflower, broccoli have been derived from wild cabbage which still grows in coastal regions of

88.
In wheat cross-pollination is possible

89.
Contamination permitted in maize is

90.
The defective copies of normal genes are known as