The year 1900 AD is highly significant for geneticists due to
Discovery of genes
Principle of linkage
Chromosome theory of heredity
Rediscovery of Mendelism
D.
Rediscovery of Mendelism
In the year 1900 Hugo de Vries, Karl Correns and Erich Tschermark independently rediscovered the research carried out by Mendel, his experiment on heredity and variations and laid the basis of modern genetics.
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 of the following is an epidermal cell containing chloroplast?
Stomata
Hydathode
Guard cell
None of these
Match the following with correct combination.
| Column I | Column II |
| A. Cuscuta | 1. Saprophyte |
| B. Eichhornia | 2. Pneumatophare |
| C. Monotropa | 3. Insectivorous plant |
| D. Rhizophora | 4. Parasite |
| E. Utricularia | 5. Root pocket |
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 |
F1-generation means
First filial generation
First seed generation
First flowering generation
First fertile generation
The structures present in the roots to absorb water and minerals is
Epidermal extensions
Hypodermis
Endodermis
Epidermal appendages
