91.

Phylogenetic system of classification is based on 

• evolutionary relationships

• morphological features

• chemical constituents

• chemical constituents

Palisade parenchyma is absent in leaves of 

• sorghum

• mustard

• soybean

• soybean

T O Diener discovered a

• free infectious RNA

• free infectious DNA,

• infectious protein

• infectious protein

Peripatus is a connecting link between

• Ctenophora and Platyhelminthes

• Mollusca and Echinodermata

• Annelida and Arthropoda

• Annelida and Arthropoda

Trichoderma harzianum has proved a useful microorganism for 

• bioremediation of contaminated soils

• reclamation of wastelands

• gene transfer in higher plants

• gene transfer in higher plants

Endosperm is consumed by developing embryo in the seed of 

• coconut

• castor

• pea

• pea

Which one of the following is linked to the discovery of Bordeaux mixture as a popular fungicide?

• Bacterial leaf blight of rice

• Downy mildew of grapes

• Loose smut of wheat

• Loose smut of wheat

Replum is present in the ovary of flower of 

• lemon

• Mustard

• Sunflower

• Sunflower

Thorn of Bougainvillea and tendril of Cucurbita are examples of 

• analogous organs

• homologous organs

• vestigial organs

• vestigial organs

In the light of recent classification of living organisms into three domains of life (bacteria, archaea and eukarya), which one of the following statement is true about archaea? 

• Archaea resemble eukarya in all respects

• Archaea have some novel features that are absent in other prokaryotes and eukaryotes

• Archaea completely differ from both prokaryotes and eukaryotes

• Archaea completely differ from both prokaryotes and eukaryotes