ICSE Class 10 Biotechnology and its Applications — Mock Test

Free online mock test for Biotechnology and its Applications (ICSE Class 10 Zoology) — 78 competency-based questions with instant marking. Try the samples below, then take the full test free.

Sample questions

1. 1.Consider the following statements about Bt toxin: 1. Bacillus thuringiensis forms protein crystals containing a toxic insecticidal protein during a particular phase of growth. 2. The toxin exists as an active protein inside the bacterium and is inactivated in the insect gut. 3. The activated toxin creates pores in midgut epithelial cells causing lysis. Which statements are correct?
   • A.1 and 3 only
   • B.1 and 2 only
   • C.2 and 3 only
   • D.1, 2 and 3
2. 2.The proteins encoded by the genes cryIAc and cryIIAb control which pest?
   • A.Cotton bollworms
   • B.Corn borer
   • C.Tobacco budworm only
   • D.Root-knot nematode
3. 3.Consider the following about genetically engineered human insulin (humulin): 1. It is identical in structure to natural human insulin. 2. Unlike animal-source insulin, it does not induce unwanted immunological responses. 3. The mature insulin contains the C peptide that links the A and B chains. Which statements are correct?
   • A.1 and 2 only
   • B.2 and 3 only
   • C.1 and 3 only
   • D.1, 2 and 3
4. 4.Animals that have had their DNA manipulated to possess and express an extra foreign gene are called:
   • A.Transgenic animals
   • B.Somatic hybrids
   • C.Clones
   • D.Somaclones
5. 5.How does the activated Bt toxin cause the death of the insect?
   • A.It binds the surface of midgut epithelial cells and creates pores causing cell swelling and lysis
   • B.It blocks the insect's neuromuscular junctions
   • C.It inhibits DNA replication in the insect's gut cells
   • D.It denatures the insect's haemolymph proteins