ICSE Class X Biology 2020 Solved Papers

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Given below are certain groups of terms. In each group the first pair indicates a relationship between the two terms. Rewrite and complete the second pair on a similar basis.
Example : Cytoplasm : Cytokinesis :: Nucleus: Karyokinesis.
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Question : 11
Total: 97
Widening of hips: Oestrogen :: Deepening of voice in males : ________.
Solution:  
Widening of hips : Oestrogen :: Deepening of voice in males : Testosterone
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