MPPSC Scientific Officer Botany Paper 2013

MPPSC Scientific Officer Botany Paper 2013

The frequency of crossing over for an allele would never be more than
(a) 30%
(b) 50%
(c) 80%
(d) 85%

Crosses between diploid male and triploid female plants practised to produce
(a) Monosomic plants
(b) Double monosomic plants
(c) Trisomic plants
(d) Nullisomic plants

Isochromosomes are the chromosomes
(a) Which are similar in morphology
(b) Which are dissimilar in morphology
(c) Whose both arms are similar
(d) Whose both arms are dissimilar

Which of the following has always stood the test of time ?
(a) Law of segregation of factors
(b) Law of dominance
(c) Law of independent assortment of factors
(d) All of the aboe

Synaptonemal complex is associated with
(a) Chromosome condensation
(b) Chromosome alignment and recombination
(c) Chromosome doubling
(d) Chromosome replication

Complete linkage is found in
(a) Male birds
(b) Female snakes
(c) Male Drosophila
(d) Female Drosophila

Mendel selected pea as the experimental material because
(a) It is an annual plant with comparatively short life cycle
(b) The flowers are self-pollinated
(c) The number of seeds produced is quite large
(d) All of the above

The largest period of cell cycle is
(a) interphase
(b) Prophase
(c) Metaphase
(d) Anaphase

Cell cycle is regulated by
(a) Amino acids
(b) Fatty acids
(c) Carbohydrates
(d) Proteins

Which of the following is NOT an in situ approach of biodiversity conservation ?
(a) Biosphere reserves
(b) Nature reserves
(c) Botanical gardens
(d) Sanctuaries

Which of the following gives the best picture of food chain ?
(a) Standing crop
(b) Pyramid of number
(c) Pyramid of biomass
(d) Pyramid of energy

Grasslands with clumps of trees are known as
(a) Chaparral biomes
(b) Deser biomes
(c) Tropical savannas
(d) Tundra biomes

Landslides mainly occur in
(a) Gangetic plains
(b) Hilly areas
(c) Grasslands
(d) Savannas

Which state of India has maximum area of saline soils ?
(a) Uttar Pradesh
(b) Rajasthan
(c) West Bengal
(d) Haryana

NEERI is situated at
(a) Pune
(b) New Delhi
(c) Nagpur
(d) Bengaluru