Clear-cut vegetative, reproductive and senescent phase are not found in

(1) Annual plants

(2) Biennial plants

(3) Perennial plants

(4) More than one option is correct

In which of the following plant there will be no seed set even after pollination?

Hermaphrodite animal is

A.Leech

B.Spider

C.Honey bee

D.Ascaris

Out of the following which two method yield genetically similar plants
A. Stem cutting
B. Seed production
C. Mutation
D. Tissue culture

1. A and B

2. A and D

3. B and C

4. C and D

Natural parthenogenesis occur in

A.Housefly

B.Drosophila

C.Honey bee

D.All

Binary fission is a type of

A.Nuclear fragmentation

B.Vegetative propagation

C.Sexual reproduction

D.Asexual reproduction

In vegetative propagation by tuber, which of the following remains constant through generations

A.Morphology

B.Vigour

C.Morphology, vigour and disease resistance

D.Both morphology and Vigour

Asexually produced organism inheriting all the character of parent is

A.Offspring

B.Clone

C.Variety

D.Hybrid

Isogamy is found in

A.Plasmodium

B.Hydra

C. Monocystis

D.Planaria

Which is not a method of vegetative propagation

A.Micro propagation

B.Budding

C.Sowing

D.Layering