443. Which one among the following cell organelles in a Eukaryotic cell is acquired during the process of evolution by
     entrapment or engulfment of Bacterial cells? [Asstt Commdt 2011]
     (a) Peroxisomes
     (b) Vacuoles
     (c) Chloroplasts
     (d) Mitochondria
Ans: (d)
444. A camel adapts easily in a desert due to [Asstt Commdt 2011]
     (a) hump with stored food as fats
     (b) water cells in stomach to store metabolic water
     (c) nucleated Red Blood Cells
     (d) hair growth near eyes and nostrils
Ans: (a)
445. A large number of identical plants can be obtained in a short span of time through [CPO SI 2011]
     (a) large number of seeds of a single plant
     (b) stem cuttings
     (c) tissue culture technique
     (d) hydroponics method
Ans: (c)
446. Leukaemia or blood cancer is characterized by abnormal increase of the [CPO SI 2011]
     (a) Red blood cells
     (b) White blood cells
     (c) Blood platelets
     (d) Blood plasma
Ans: (b)
447. The poison of honey bee is [CPO SI 2011]
     (a) Acidic
     (b) Alkaline
     (c) Saltish
     (d) Protein
Ans: (a)
448. Which component of plants receives stimulus for flowering? [BPSC 2011]
     (a) Stems
     (b) Branches
     (c) Leaves
     (d) Roots
Ans: (c)
449. Mendel"s principles of inheritance are based on [BPSC 2011]
     (a) vegetative reproduction
     (b) asexual reproduction
     (c) sexual reproduction
     (d) All of the above
Ans: (c)
450. Photosynthesis occurs in [BPSC 2011]