The hormone that prepares and maintains the uterus during pregnancy is secreted by

$A$ : Development is the emergence of a multicellular organism from a single group of cells.
$R$ : Development involves growth, differentiation and morphogenesis.

Given a diagram showing a portion of a seminiferous tubule. Identify the marked alphbates

Which one of the following is the most widely accepted method of contraception in India, at present?

When a foetus develops limbs and digits?

Which hormone is produced throughout the menstrual cycle?