Which one of these structures involved in replication of bacterial dna?

The fate of each blastomere is foretold. The cleavage will be as____________?

A. Spiral and indeterminate
B. Radial and indeterminate
C. Radial and indeterminate
D. Spiral and determinate

Oxygen is the production of____________?A. Mitochonderia
B. Chloroplast
C. Peroxisomes
D. Both A & B

 

Proteins comprise of ___________% of the total dry weight of a cell?

A. 40%
B. 50%
C. 60%
D. 70%

Fresh Yeast cells are good source of :___________?

A. Vitamin-B
B. Nicotine
C. Morphine
D. None of the above

Which of the following step occurs immediately after binding of Ca2+ with troponin molecule during muscle contraction.

A. Binding sites of actin get attached to the myosin head.
B. Troponin uncovers the actin binding sites.
C. Tropomyosin gets removed from the binding sites of actin filaments.
D. Ca2+ goes back inside sarcoplasmic reticulum.

Main use of salt in diet is to_________?

A. Ease the process of cooking
B. produce small amount of hydrochloric acid required for digestion
C. Increase the taste
D. None of the above