Theory

CH19 - GENETIC TECHNOLOGY

(a) Identify structure X in Fig. 6.1.....................................................................................................................

2024 Spring

3

Theory

CH19 - GENETIC TECHNOLOGY

(a) Explain what is meant by genetic engineering. .......................................................................................................

2024 Winter

3

Theory

CH19 - GENETIC TECHNOLOGY

(a) State one reason why a doctor would recommend that a person has genetic testing for a mutation in the gene BRCA1 and explain why this mutation wou...

2024 Summer

3

Theory

CH19 - GENETIC TECHNOLOGY

White-clawed crayfish, Austropotamobius pallipes, live in rivers and lakes in Europe. In the 1850s, the North American signal crayfish, Pacifastacus l...

2024 Summer

2

Theory

CH19 - GENETIC TECHNOLOGY

Scientists use many different techniques in genetic engineering. (a) Sometimes the gene for genetic engineering cannot be extracted from the donor or...

2024 Winter

3

Theory

CH19 - GENETIC TECHNOLOGY

It has been hypothesised that the mutation rate of an animal species may affect how fast animals of that species age and how long they live (lifespan)...

2024 Summer

3

Theory

CH19 - GENETIC TECHNOLOGY

(a) (i) Genetic engineering uses specific enzymes and commonly involves the use of plasmids for the transfer of genes into an organism. Four enzymes t...

2024 Summer

2

Theory

CH19 - GENETIC TECHNOLOGY

BRCA2 is a tumour-suppressor gene. Its gene product, BRCA2, is involved in DNA repair. If the DNA cannot be repaired, BRCA2 has a role in causing the ...

2024 Summer

4

Theory

CH19 - GENETIC TECHNOLOGY

Scientists use many different techniques in genetic engineering.(a) Sometimes the gene for genetic engineering cannot be extracted from the donor orga...

2024 Winter

Theory

CH19 - GENETIC TECHNOLOGY

Medicine is defined as the diagnosis, treatment and prevention of disease. Outline the different ways in which genetic technology can be applied to m...

2023 Winter

2

Theory

CH1 - CELL STRUCTURE

(a) (i) Name the cells labelled A and the structure labelled B.A ........................................................................................

2013 Summer

2

Theory

CH10 - INFECTIOUS DISEASE

(a) Explain how the virus that causes measles is transmitted.............................................................................................

2013 Summer

2

Theory

CH7 - TRANSPORT IN PLANTS

(a) Transpiration is often described as an 'inevitable consequence of gas exchange in plants'.Explain what is meant by this statement....................

2013 Summer

1

Theory

CH6 - NUCLEIC ACIDS AND PROTEIN SYNTHESIS

Fig. 4.1 shows the two base pairs in a DNA molecule.(a) Name the bases labelled J and K and the bond labelled L.J .......................................

2013 Summer

1

Theory

CH4 - CELL MEMBRANES AND TRANSPORT

Fig. 5.1 shows a section of a cell surface membrane.(a) State the functions of structures P, Q and R.P ..................................................

2013 Summer

2

Theory

CH5 - THE MITOTIC CELL CYCLE

(a) Explain how uncontrolled cell division can result in cancer. ........................................................................................

2013 Summer

2

Theory

CH5 - THE MITOTIC CELL CYCLE

(a) The cells in Fig. 1.1 are from the same organism and look the same. The cells in Fig. 1.1(a) have been produced by mitosis and the cells in Fig. 1...

2013 Summer

2

Theory

CH7 - TRANSPORT IN PLANTS

Fig. 2.1 shows xylem tissue in a longitudinal section through the stem of a dicotyledonous plant. [Image_1: Fig. 2.1] (a) Describe and explain how the...

2013 Summer

2

Theory

CH10 - INFECTIOUS DISEASE

(a) Explain why tuberculosis (TB) is known as an infectious disease......................................................................................

2013 Summer

3

Theory

CH2 - BIOLOGICAL MOLECULES

Polysaccharides are synthesised by condensation reactions between monosaccharide or disaccharide subunits (monomers).(a) Name the type of bond formed ...

2013 Summer

3