Explain the following terms:
a. Monohybrid cross
A cross in which only one contrasting character is considered is called a monohybrid cross.
The diagram given below is that of a developing human foetus in the womb. Study the same and then answer the questions which follow:
(i) Name the part labelled 1.
(ii) Mention any two functions of the part labelled 2.
(iii) Explain the role played by the part labelled 3.
(iv)What is the normal gestation period (in days) of the developing foetus?