$A$ : Leydig’s cells synthesise and secrete testicular hormones called androgens.
$R$ : Leydig’s cells are located between the Sertoli cells.
Assertion and Reason both are correct and also correct explantion.
Assertion and Reason both are correct but not explanation of assertion.
Assertion is correct, but Reason is incorrect.
Both Assertion and Reason are incorrect.
From which embryonic structure develops the vertebral column
Name $A, B, C$ chormones in the given figure
After gastrulation the roof of archenteron is formed by
Development of structure and shape of an organism is
Neural crest cells break off from the ________ and later move to the sides of the developing embryo to form ________