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  • Biology
20 Marks

In genetics, what is meant by sex linkage?

(2007)

  • Biology
20 Marks

The diagrams represent two forms of a vascular plant tissue, as seen under the microscope.

(2007)

  • Biology
30 Marks

What is meant by an enzyme?

(2007)

  • Biology
60 Marks

The DNA molecule is composed of two strands held together by paired bases.

(2007)

  • Biology
60 Marks

For what is ATP an abbreviation?

(2007)