Related Questions

Which of the following bacterium causes crown gall disease in plants?
A Bacillus thurigiensis
B Agrobacterium tumefaciens
C Pseudomonas fluorescens
D None of these
The change in length due to a tensile or compressive force acting on a body is given by (where P = Tensile or compressive force acting on the body, $$l$$ = Original length of the body, A = Cross-sectional area of the body and E = Young's modulus for the material of the body)
A $$\frac{{{\text{P}}l{\text{A}}}}{{\text{E}}}$$
B $$\frac{{{\text{P}}l}}{{{\text{AE}}}}$$
C $$\frac{{\text{E}}}{{{\text{P}}l{\text{A}}}}$$
D $$\frac{{{\text{AE}}}}{{{\text{P}}l}}$$
There are blank spaces in the following passage which have been numbered . These numbers are printed below the passage and against each some words are suggested . Find out the word that best fit the blank spaces. Global Strategies to control infective disease have historically included the erection of barriers to international travel and ___ (24) _______. Keeping people with such deadly disease outside national borders has ___ (25) _______ as an important public health policy in the human immunodeficiency virus (HIV) epidemic . Betwwn 29 and 50 countries ___ (26) _____ to have introduced border restrictions on HIV _ positive foreigners ,usually those planning an ___ (27) ___ stay in the country , such as students , workers or seamen.
A migration
B immigrate
C emigration
D immigration
The bacterium which reduces the fertility of soil is
A Nitrosomonas sp
B Azotobacter sp
C Nitrobacter sp
D Bacillus dentificans
May physician has told me that stomach ulcres are "not caused by stress ,alcohol,or rich foods" but a bacterium that dwells in the mucous lining of the stomach.(Match the best alternative that correspond to the quotations word)
A Not caused by stress ,alchol, or rich foods, but
B Not caused by stress ,alchol, or rich foods or but
C Caused not by stress,alchol,or rich foods but by
D Caused not by stress,alcohol and rich foods but
The DNA of the bacterium is found present in a distinct nuclear region called
A Nucleolus
B Centrosome
C Nucleoid
D Nucleus
The DNA bacterium consists of ring-like pieces known as the
A Plasmids
B Genes
C Chromosomes
D Mesosomes
The commonest bacterium found in a wound abscess is 
A Staphylococcus aureus
B Streptococcus pyogenes
C Pseudomonas aeruginosa
D Bacteroides
MRI যন্ত্রের সাহায্যে মানব দেহের রোগ নির্ণয়ে কোন মৌলটির ভূমিকা রয়েছে? (Which element plays a role in diagnosing disease in a human body by MRI?)
A Neon
B Oxygen
C Hydrogen
D Silicon
MRI যন্ত্রের সাহায্যে মানবদেহের রোগ নির্ণয়ে কোন মৌলটির ভূমিকা রয়েছে? (Which element plays a role in diagnosing disease in a human body by MRI?)
A Neon
B Oxygen
C Hydrogen
D Silicon

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