Biology 0610 · IGCSE · Biotechnology and genetic modification

Biotechnology and genetic modification — practice question

Certain blood-clotting disorders may be passed on through inheritance.
(a(i))[2]

Describe the meaning of the term inheritance.

(a(ii))[4]

Describe how blood-clotting happens.

(b(i))[2]

State the names of enzyme A and enzyme B in Fig. 6.1.

(b(ii))[2]

Explain why enzyme A must be used to cut both the human DNA and the plasmid.

(b(iii))[1]

State what the letter C in Fig. 6.1 shows.

(b(iv))[1]

Explain why the contents of the fermenter in Fig. 6.1 are continuously stirred.

(b(v))[2]

Bacteria can be used to produce complex molecules. Describe two other reasons why bacteria are useful in biotechnology.

(b(vi))[2]

Describe two differences between animal cells and bacterial cells.

(c)[4]

Discuss the advantages and disadvantages of genetic modification of crop plants.

Worked solution & mark scheme

This 20-mark question has a full step-by-step worked solution and mark scheme. One marking point: passing of genetic information

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