CBSE
Multiple Choice QuestionsDarwin’s finches are an excellent example of
Adaptive Radiation
Seasonal migration
Brood parasitism
Connecting links
Masses of pollen grains, i.e., pollinia is found in
Gramineae
Solanaceae
Orchidaceae
Malvaceae
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 cross will produce terminal flower in garden pea?
AA x Aa
AA x aa
Aa x Aa
Aa x AA
Vascular tissues in flowering plants develop from
Phellogen
Plerome
Periblem
Dermatogen
Morphine, which is used as an analgesic is obtained from
Taxusbrevifolia
Berberisnilghiriensis
Cinchona officinalis
Pa paver somniferum
Study the following statements and select the correct option.
I. Tapetum nourishes the developing pollen grains.
II. Hilum represents the junction between ovule and funicle.
III. In aquatic plants such as water hyacinth and water lily, pollination is by water.
IV. The primary endosperm nucleus is triploid.
I, II, and IV are correct, but III is incorrect
I and II are correct, but III and IV are incorrect
I and IV are correct, but II and III are incorrect
I, Ill and IV are correct, but I is incorrect
A mature pollen grain of Pinus has
2 cells
3 cells
4 cells
5 cells
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
