Practice Questions

  1. Home
  2. Free Resources
  3. Practice Questions
  4. 39629
TLS Online TPP Program

#Question id: 27228

The structure of RNA differs from that of DNA, as RNA contains:

#XL - T Zoology
  1. The sugar ribose instead of deoxyribose
  2. uracil instead of thymine
  3. it contains Cytosine
  4. a and b
More Questions
TLS Online TPP Program

#Question id: 10347

#XL - Q Biochemistry

NH4+ is toxic to plants, inhibit dinitrogenase and also interfere energy metabolism by dissociating ATP formation  from ETC  in both mitochondria and chloroplasts. What will plant cells do to avoid this problem?

a) Plant cells avoid ammonium toxicity by rapidly converting the ammonium generated from nitrate assimilation or photorespiration into nitrate

b) Plant cells avoid ammonium toxicity by rapidly converting the ammonium generated from nitrate assimilation or photorespiration into amino acids

c) The pathway for this conversion involves the sequential actions of glutamine synthetase (GS) and glutamate synthase (GOGAT)

d) The pathway for this conversion involves the sequential actions of Aspartate aminotransferase (Asp-AT) and Asparagine synthetase (AS)

Which of the above statements is incorrect?
TLS Online TPP Program

#Question id: 14816

#XL - S Microbiology

Which one is the correct order of  a good antigen, on the basis of Antigenicity?
TLS Online TPP Program

#Question id: 12705

#XL - R Botany

In Neurospora crasssa, the mutant exhibit poky phenotype, when a female of  poky strain is crossed with a normal strain acting as a male , all progeny individuals shows poky phenotype . however, the reciprocal cross resulted in all normal progeny. These results can be explained on the basis of 
TLS Online TPP Program

#Question id: 15458

#XL - S Microbiology

In nature, bacteria
TLS Online TPP Program

#Question id: 2107

#XL - S Microbiology

All the following statements describe biomembranes except: