MCQ
Which of the following carry the same genetic information?
- ✓Sister chromatids.
- B$X$ and $Y$ chromosomes.
- CAll autosomes.
- DHomologous chromosomes.
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| Alveolar Air | Atmospheric Air | |
| $p O _{2}$ | $ X$ | $ Y$ |
| $pCO _{2}$ | $A$ | $B$ |
$I$. $ECG$ 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