MCQ
How is extinction represented in a family tree diagram?
- AWhen a branch splits.
- BWhen a branch ends.
- CWhen a branch shifts along x - axis.
- DWhen a branch shifts along y - axis.
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$I$. To study the normal physiology and development
$II$. To study diseases
$III$. To obtain useful biological products
$IV$. To test the vaccine safety
$V$. To test the chemical safety
Which of the above statements are correct?