Prepistan

Pigment present in red algae is_____________?

A. fucoxanthin B. phycocyanin C. phycoerythrin D. bilirubin

7 years ago

Vaccine was first developed by_______________?

A. Louis Pasture B. Edward Jenner C. Jaber Ibn Hayan D. Aristotle

7 years ago

The major cell infected by the HIV is lymphocyte ?

A. helper-T B. B C. both T and B D. none of these

7 years ago

Which disease can be controlled by vaccination?

A. Measles B. Cancer C. Diabetes D. Heart attack

7 years ago

Smallest disease causing agents in plants are ?

A. virion B. mycoplasma C. viroids D. prions

7 years ago

What is the mode of transmission of Hepatitis virus?

A. Aerosol B. Parentral (via blood) C. Skin penetration D. Unknown

7 years ago

Protein factory is___________?

A. nucleus B. ribosome C. golgi complex D. centriole

7 years ago

Which statement is incorrect for pasteurization?

A. It is used to preserve yogurt and milk B. It was developed by Louis Pasteur. C. It involves heating…

7 years ago

Number of chromosomes in E.coli ?

A. 1 B. 2 C. 4 D. 6

7 years ago

Astronauts may use which technique to grow fruits and vegetables ?

A. Tissue culture techniques B. Cloning C. Pasterisation D. Hydroponic culture technique

7 years ago

Messenger RNA is formed in_________?

A.nucleus B.chloroplast C.mitochondria D.none of these

7 years ago

Co-enzyme is often formed from ?

A. lipid B. protein C. inorganic ion D. vitamin

7 years ago

Breeders have developed new and better varieties of food items by using which technique?

A. Pasteurization B. Hydroponic culture technique C. Genetic engineering D. Biological control techniques

7 years ago

Starch is converted into maltose by?

A. diastase B. invertase C. maltase D. amylase

7 years ago

Conclusion of Mendels work latter became a_____________?

A. Scientific hypothesis B. Theory C. Scientific law D. Productive theory

7 years ago

Which one is not correct for a productive theory?

A. It is predictive B. It has explanatory power C. It discourages suggestion of different hypotheses D. None of these

7 years ago

Which are the four most abundant elements in living cells ?

A. carbon, oxygen, nitrogen, sulfur B. carbon, oxygen, hydrogen, nitrogen C. carbon, oxygen, sulfur, phosphorus D. carbon, sulfur, hydrogen, magnesium

7 years ago

A series of hypothesis supported by the results of many tests is called ?

A. Scientific law B. Theory C. Data D. Deduction

7 years ago