Molecular Basis of Inheritance — BIOLOGY STD 12 Science — Question

In a DNA strand the nucleotides are linked together by:

If a population of 50 Paramoecium present in a pool increases to 150 after an hour, What would be the per cent growth or birth rate per individual per hour of population?

If dwarf pea plant was treated with Gibberellic acid, it grew as tall as the pure tall pea plant. If this treated plant is crossed with a pure tall plant then the phenotypic ratio of is likely to be

Source of energy in an ecosystem is

Sexually transmitted diseases can not get transmitted easily during use of

In 'fed batch' fermentation method, the process of continuously adding sugar is done for which of one of the followings?

Which of the following part of spermatozoan arises from centriole?

The sperm becomes mature and fully motile in:

Which one of the following blood groups belongs to the category of universal recipient