Reproduction in Gymnosperms

Q.

Fruits are not found in gymnosperms because

1. They are not seedless

2. They are not pollinated

3. They have no ovary

4. Fertilization does not takes place

Q. If the haploid number of chromosomes in a gymnosperm is 6, their number in the endosperm would be:

1. 12
2. 24
3. 6
4. 36

Q. One character common to all pteridophytes is:

1. Heterospory
2. Leptosporangiate sporangia
3. Protostelic stele
4. Absence of ovules

Q.

Fruits are not found in gymnosperms because

1. They are not seedless

2. They are not pollinated

3. They have no ovary

4. Fertilization does not takes place

Q. Select the mismatch :

1. Pinus - Dioecious
2. Cycas - Dioecious
3. Salvinia - Heterosporous
4. Equisetum - Homosporous

Q. Which among the following is the correct statement?

1. All gymnosperms are homosporous
2. All gymnosperms are heterosporous
3. Mostly all gymnosperms are heterosporous and only few are homosporous
4. All gymnosperms and all pteridophytes are heterosporous

Q.

In gymnosperms the seeds are naked because they lack_____

1. Integuments

2. Pericarp

3. Nucellus

4. Perianth

Q. Match the columns I and II and choose the correct combination from the options given: Column I Column II

a. Haplontic life cycle	i. Gymnosperms and angiosperms
b. Diplontic life cycle	ii. Spirogyra
c. Haplo-diplontic life cycle	iii. Bryophytes and pteridophytes

1. a-i, b-ii, c-iii
2. a-iii, b-i, c-ii
3. a-ii, b-i, c-iii
4. a-ii, b-iii, c-i