The State or the defendant shall have the right to have the jury polled, which is done by calling separately the name of each juror and asking him if the verdict is his. If all, when asked, answer in the affirmative, the verdict shall be entered upon the minutes; but if any juror answer in the negative, the jury shall retire again to consider its verdict.
Acts 1965, 59th Leg., vol. 2, p. 317, ch. 722.