Cotton fibre is basically a type of

• trichome

• scale

• dried seed coat

• non glandular hair

The term 'alpha diversity' refers to

• genetic diversity

• community and ecosystem diversity

• species diversity

• diversity among the plants

Percentage composition of fibroin and sericin in silk is

• 50 : 40

• 80 : 20

• 30 : 70

• 40 : 60

74.

Which one of the following is biological insecticide?

• Tiger beetle

• Caterpillar

• Silkmoth

• Mazra poka

Which one of the following diseases is spread by housefly?

• Dengue fever

• Encephalitis

• Filariasis

• Typhoid

Nutrient enrichment of a lake will cause

• eutrophication

• stratification

• biomagnification

• bioaccumulation

Tuberculosis is caused by

• Mycobacterium sp.

• Aspergillus sp.

• Clostridium sp.

• Vibrio sp.

The scientific name of Java man is

• Homo habilis

• Homo sapiens neandarthalensis

• Homo erectus erects

• Australopithecus bisei

Which of the following condition is called monosomic?

• 2n + 1

• 2n + 2

• n + 1

• 2n - 1

Which of the following is structural subunit of DNA?

• Protein

• Carbohydrate

• RNA

• Nucleotide