Mention the site of fertilization of a human ovum. List the events that follow in sequence until the implantation of the blastocyst.

(a) Explain the events taking place at the time of fertilization of an ovum in a human female. (b) Trace the development of the zygote upto the implanation in the uterus. (c) Name and draw a labelled sectional view of the embryonic stage that gets implanted.

In the human female, fertilization of the ovum takes place in

List the post-fertilization events in angiosperms.

which of the following depicts the site of impantation of blastocyst under normal condition

Mention the ploidy of the following: ovum of a liverwort

The diagram given belwo represents a system in the human body. Study the diagram and answer the following question: Mention the number and the name of the part involved in fertilization and implantation from the above diagram.

Which of the following sequences of events best describes inspiration?

A card is drawn from a pack of 52. List the outcomes of the following events: Getting a red ace.

A card is drawn from a pack of 52. List the outcomes of the following events: Getting a king.

Given below are diagrams showing the different stages in the process of fertilisation of an egg in the human female reproductive tract. Study the diagrams and answer the questions (i) Arrange the letters given below each diagram in a logical sequence to show the correct order in the process of fertilisation. (ii) Where does fertilisation normally take place? What is 'Implantation' that follows fertilisation ? (iii) Mention the chromosome number of the egg and zygote in humans. (iv) Explain the term 'Gestation'. How long does Gestation last in humans ? (v) Draw a neat, labelled diagram of a mature human sperm.