Question
Mention the function of testosterone?

Answer

Testosterone is a steroid sex hormone secreted by testes and cortex of adrenal glands. It controls the secondary sexual characters in males.

Question 3.
Give symptoms of the disease caused by hyposecretion of ADH.
Answer:
Polydipsia, i.e. frequent thirst and polyuria, i.e. frequent urination are the symptoms of the disease caused by hyposecretion of ADH.

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Why law of segregation is also called the law of purity of gametes?
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  2. R strain into mice → mice live.
  3. Heat killed S strain + live R strain into mice → A
  4. Heat killed S strain + DNase + live R strain → into mice B
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  3. Name the Scientist who performed the steps (a), (b) and (c).
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Use this key for Questions A-D Key:
  1. thymus gland.
  2. spleen.
  3. lymph node.
  4. red bone marrow.
  1. Causes differentiation of T-cells.
  2. Purifies lymph.
  3. Contains red pulp and white pulp.
  4. Formation of granular and a granular leukocytes.
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