The year 1900 AD is highly significant for geneticists due to

• Discovery of genes

• Principle of linkage

• Chromosome theory of heredity

• Rediscovery of Mendelism

F1-generation means

• First filial generation

• First seed generation

•  First flowering generation

• First fertile generation

33.

Which of the following cross will produce terminal flower in garden pea?

• AA x Aa

• AA x aa

• Aa x Aa

• Aa x AA

Which one of the following pairs of plants are not seed producers?

• Funaria and Ficus

• Fern and Funaria

• Funada and Pinus

• Ficus and Chlamydomonas

Which one of the following is heterosporous?

• Equisetum

• Dryopteris

• Salvinia

• Adianturn

 Match the following with correct combination.

• A	B	C	D	E
  3	1	5	4	2

• A	B	C	D	E
  2	3	1	5	4

• A	B	C	D	E
  4	3	1	5	2

• A	B	C	D	E
  4	5	1	2	3

First vascular plant is

• Thallophyta

• Pteridophyta

• Bryophyta

• Spermatophyta

Diatomaceous earth is obtained from

• Bacillarophyceae

• Xanthophyceae

• Rhodophyceae

• Chrysophyceae

Which of the following is an epidermal cell containing chloroplast?

• Stomata

• Hydathode

• Guard cell

• None of these

The structures present in the roots to absorb water and minerals is

• Epidermal extensions

• Hypodermis

• Endodermis

• Epidermal appendages