Due to the action of ultraviolet rays of sun, human body produces___________________?

Related Mcqs:

1. Stadler, first used X-rays for induction of mutation in_________________?

   A. Oat
   B. Maize
   C. Wheat
   D. Barley

2. Severe diarrhea and dehydration in human is due to lack of__________________?

   A. Rennin
   B. Lysine
   C. Lactase
   D. All the above

3. Surface temperature of sun is___________________?

   A. 6000°C
   B. 100,000°C
   C. 500°C
   D. 2000°C

4. Concept of combining ability as measure of gene action was first proposed by___________________?

   A. Sprague and Tatum (1942)
   B. Cavalli (1952)
   C. Mather (1956)
   D. Wright (1951)

5. The suppression of the action of a gene or genes by a gene or genes not allelomorphic to these suppressed is known as __________________?

   A. Episode
   B. Co dominance
   C. Epistasis
   D. Dominance

6. Small rivulets or finger like channels formed on the surface of earth by action of water, these channels are of small depth & can be leveled by tillage operations is:

   A. Gully erosion
   B. Sheet erosio.
   C. Stream bank erosion
   D. None of these

   Submitted by: Shafiq Rehman

7. The science which deals with food supply, for human consumption is called_____________________?

   A. Food science
   B. Food technology
   C. Nutritive food
   D. Food process

8. The deficiency of vitamin D in human causes __________________?

   A. Rickets
   B. Osteomalecia
   C. Decalcification
   D. All the above

9. The deficiency of vitamin K in human causes _________________________?

   A. Uncontrolled bleeding
   B. Internal hemorrhage
   C. Prolonged blood clotting
   D. all the above

10. Dairy product regularly suffers from rancid, goaty and unclean taints due to excessive concentration of_____________________?

    A. C₁₁C₂₀fatty acids
    B. C₂₀C₂₂fatty acids
    C. C₁₂C₂₀fatty acids
    D. C₄——–C₁₆fatty acids