1. (A) carbon dioxide You must know that, in human heart, the anterior vena cava collects, deoxygenated blood from the head, chest, and arms and enters the right atrium while the inferior vena cava collects blood from the lower body regions. Both venae cava pass the deoxygenated blood to the right atriRead more

    (A) carbon dioxide
    You must know that, in human heart, the anterior vena cava collects, deoxygenated blood from the head, chest, and arms and enters the right atrium while the inferior vena cava collects blood from the lower body regions. Both venae cava pass the deoxygenated blood to the right atrium and, blood from tissues is rich in CO₂. You should choose option [A] as an answer.

    See less
    • 1
  2. [B] Germanium Germanium is not a compound; it is a metalloid. It has intermediate properties between those of metals and non -metals.

    [B] Germanium
    Germanium is not a compound; it is a metalloid. It has intermediate properties between those of metals and non -metals.

    See less
    • 1
  3. Yes. One can use antibody against the enzyme (that is responsible for the metabolism of phenylalanine) to develop ELISA based diagnostic technique. The patient where the enzyme protein is absent would give negative result in ELISA when compared to normal individual.

    Yes. One can use antibody against the enzyme (that is responsible for the metabolism of phenylalanine) to develop ELISA based diagnostic technique. The patient where the enzyme protein is absent would give negative result in ELISA when compared to normal individual.

    See less
    • 1
  4. Gene expression can be controlled by using RNA molecule. The technology is called RNA interference or RNAi. It is used to block the expression of certain genes and also referred to as gene silencing. During this process a complementary RNA to the mRNA being produced by the gene is introduced into thRead more

    Gene expression can be controlled by using RNA molecule. The technology is called RNA interference or RNAi. It is used to block the expression of certain genes and also referred to as gene silencing. During this process a complementary RNA to the mRNA being produced by the gene is introduced into the cell. This RNA binds to the mRNA making it double stranded and herefore stops translation. Resistance to nematode Meloidegyne incognita in tomato has been achieved by this method.

    See less
    • 1
  5. Study basic biological process- how gene are regulated, how they affect the normal functions of the body and its development. Transgenic cow, Rosie is the example for the second category.

    Study basic biological process- how gene are regulated, how they affect the normal functions of the body and its development. Transgenic cow, Rosie is the example for the second category.

    See less
    • 1