Given below are assertion and reason. Point out if both are true with reason being correct explanation (A), both are true but reason is not correct explanation (B), assertion is true but reason is wrong (C), and both are wrong (D).
Assertion. SA node produces excitatory impulses in heart
Reason. SA node is self excitatory.

Q. Assertion: Scientific name Naja naja is an example of a tautonym.
Reason: Tautonyms are accepted only in zoological nomenclature.

Q. Given below are assertion and reason. Point out if both are true with the reason being a correct explanation (A), both true but the reason is not correct explanation (B), the assertion is true but the reason is wrong (C) and both are wrong (D).

Q. Given below are assertion and reason. Point out if both are true with reason being the correct explanation (A), both are true but reason is not the correct explanation (B), assertion is true but reason is wrong (C) , and both are wrong (D).

Assertion: ICBN is there to give scientific name to plants.
Reason: It uses articles, photographs and recommendations to name a plant.

Q. Given below are assertion and reason. Point out if both are true with reason being correct explanation (A), both are true but reason is not correct explanation (B), assertion is true but reason is wrong (C) and both are wrong (D).
Assertion. $H{b}^{S}H{b}^S$ is homozygous condition of sickle cell anaemia.
Reason. It occurs due to substitution of glutamic and by valine at sixth position in $\beta$-chain of hemoglobin.

Q. Given below are assertion and reason. Point out if both are true with reason being correct explanation (A), both true but reason is not correct explanation (B), assertion true but reason wrong (C), and both wrong (D),
Assertion. Vascular cambium is considered as lateral meristem.
Reason. It gives rise to lateral shoots.