MCQ
The first heart sound is
- A'Lubb' sound at the end of systole
- B'Dub' sound at the end of systole
- ✓'Lubb' sound at the beginning of systole
- D'Dub' sound at the beginning of systole
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$\begin{array}{|p{0.3\linewidth}|l|} \hline Column\,\,-I & Column\,\,-II \\ \hline (1)\,\,Typical\,\,bacterial & (p)\,\,Site\,\,of\,\,protein\,\,synthesis \\ \hline (2)\,\,Ribosome & (q)\,\,1-2\,\,\mu\,m \\ \hline (3)\,\,Long\,\,and\,\,branched & (r)\,\,Control\,\,of\,\,bacterial\,\,transform \\ \hline (4)\,\,Plasmid & (s)\,\,Nerve\,\,cell \\ \hline \end{array}$