Antherozoids and Archegonium

Q. The egg is present in the

1. venter
2. neck
3. jacket
4. stalk

Q. Name three groups of plants that bear archegonia. Briefly describe the life cycle of any one of them?

Q. In Funaria, 20 chromosomes are present in rhizoids, then the number of chromosome in calyptra, theca and foot will be:

1. 40, 20, 20 respectively
2. 20, 40, 20 respectively
3. 20, 40, 40 respectively
4. 40, 10, 20 respectively

Q.

Name three groups of plants that bear archegonia. Briefly describe the life cycle of any one of them.

Q. Zygote do not undergo reduction division immediately but produce multicellular sporophyte in

1. Funaria
2. Selaginella
3. Cycas
4. All of the above

Q. In our body, ________ is a process by which dead cells are replaced, whereas ________ is a process by which gametes are formed.

1. mitosis; meiosis
2. mitosis; mitosis
3. meiosis; meiosis
4. meiosis; mitosis

Q. Antheridium and archegonium produce X and Y. Identify X and Y.

1. X-biflagellate antherozoids, Y-egg
2. X-biflagellate antherozoids, Y-non-motile antherozoids
3. X-non-motile antherozoids, Y-egg
4. X-non-motile antherozoids, Y-biflagellate antherozoids

Q. Bryophytes can be separated from algae in that they

1. are thalloid forms
2. are non-vascular
3. have archegonia
4. reproduce sexually

Q. What is difference between gametangeal contact and planogametic copulation