MCQ
In $B-DNA$, the rise per base pair would be
- A$4.3\; Å$
- B$2.4 \;Å$
- ✓$3.4\; Å$
- D$4.2\; Å$
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
$I$. $ECG$ is of a great clinical significance
$II$. Electrocardiograph is the recording of electrical changes in cardiac muscles during the cardiac cycle
$III$. To obtain a standard $ECG$, a patient is connected to the machine with $3$ electrical electrodes (one to each wrist and to the left ankle)
$IV$. Normal activities of the heart are regulated intrinsically
$V$. Electrocardiogram is the electrical activity of heart
The option with correct statements is