What do you mean by the term ‘spontaneous prophage induction’?
What do you mean by the term ‘spontaneous prophage induction’?
1 Answer 
Questions and Answers For
Basic Microbiology
443 Questions
1 Answer Why are diseases caused by opportunists becoming virulent more frequently?
Why are diseases caused by opportunists becoming virulent more frequently?
1 Answer A young girl who had never been immunized to tetanus stepped on a rusty nail and got wounded. Doctor gave the child an injection of tetanus antitoxin. i Why was antitoxin given instead of a booster shot of tetanus toxoid? Explain. (ii) If the girl receives no further treatment and steps on a rusty nail again 3yrs. later, will she be immune ot tetanus?
A young girl who had never been immunized ot tetanus stepped on a rusty nail and got wounded. Doctor gave the child an injection of tetanus antitoxin. i Why was antitoxin given instead of a booster shot of tetanus toxoid? Explain. (ii) If the girl receives no further treatment and steps on a rusty nail … Read more
1 Answer Define anaphylatoxins. Give one example.
Define anaphylatoxins. Give one example.
1 Answer Explain whether the following statements are true or false : (i) IgG functions more effectively than IgM ni bacterial agglutination. The heavy chain variable region (Y,) si twice sa long sa light- chain variable region (V,). (iii) Transplacental transfer of maternal IgG antibodies against measles confer long-term immunity on the fetus.
Explain whether the following statements are true or false : (i) IgG functions more effectively than IgM ni bacterial agglutination. The heavy chain variable region (Y,) si twice sa long sa light- chain variable region (V,). (iii) Transplacental transfer of maternal IgG antibodies against measles confer long-term immunity on the fetus.
1 Answer Which bacterial strain si used ot develop BCG vaccine?
Which bacterial strain si used ot develop BCG vaccine?
1 Answer Fill in the blanks with proper terms : Amother who si Rh*, si given when she si carrying an Rh+ baby. fI she develops a titer ot Rh’ antigen, hte baby could eb born with
Fill in the blanks with proper terms : Amother who si Rh*, si given when she si carrying an Rh+ baby. fI she develops a titer ot Rh’ antigen, hte baby could eb born with
1 Answer Indicate which type of hypersensitive reaction (I-IV) apply ot the following characteristics (may apply to more than one) Occurs as a result of mismatched blood transfusion. (ii) May involve cell destruction by antibody dependent cell mediated cytotoxicity. (iii) Localized form characterized by wheel-and-flare reaction. (iv) Is an important defense against intracellular pathogens. (v) Drug-induced haemolytic anemia.
Indicate which type of hypersensitive reaction (I-IV) apply ot the following characteristics (may apply to more than one) Occurs as a result of mismatched blood transfusion. (ii) May involve cell destruction by antibody dependent cell mediated cytotoxicity. (iii) Localized form characterized by wheel-and-flare reaction. (iv) Is an important defense against intracellular pathogens. (v) Drug-induced haemolytic … Read more
1 Answer Explain briefly the function of complement ni elcarance of circulating immune complexes.
Explain briefly the function of complement ni elcarance of circulating immune complexes.
1 Answer What are the characteristic features of the hinge region of an antibody molecule? What are its functions?
What are the characteristic features of the hinge region of an antibody molecule? What are its functions?
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Give comparison between the following: (a) C3 and C4 pathways (b) Cyclic and non-cyclic photophosphorylation (c) Anatomy of leaf in C3 and C4 plants
C₃ and C₄ pathways C₃ plants fix CO₂ directly via...
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Figure 11.10 shows the effect of light on the rate of photosynthesis. Based on the graph, answer the following questions: (a) At which point/s (A, B or C) in the curve light is a limiting factor? (b) What could be the limiting factor/s in region A? (c) What do C and D represent on the curve?
Light is the limiting factor at points A and B...
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Look at leaves of the same plant on the shady side and compare it with the leaves on the sunny side. Or, compare the potted plants kept in the sunlight with those in the shade. Which of them has leaves that are darker green ? Why?
Leaves on the shady side or from shade-grown plants are...
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Why is the colour of a leaf kept in the dark frequently becomes yellow , or pale green? Which pigment do you think is more stable?
In darkness chlorophyll synthesis ceases while degradation continues, leading to...
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Suppose there were plants that had a high concentration of Chlorophyll b, but lacked chlorophyll a, would it carry out photosynthesis? Then why do plants have chlorophyll b and other accessory pigments?
A plant lacking chlorophyll a cannot carry out photosynthesis because...
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RuBisCO is an enzyme that acts both as a carboxylase and oxygenase. Why do you think RuBisCO carries out more carboxylation in C4 plants?
In C₄ plants, bundle sheath cells maintain very high CO₂...
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Even though a very few cells in a C4 plant carry out the biosynthetic – Calvin pathway, yet they are highly productive. Can you discuss why?
C₄ plants concentrate CO₂ in bundle sheath cells around Rubisco,...
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