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

MCQ

CH1 - CELL STRUCTURE

Which organelles are enclosed in a single phospholipid bilayer and contain hydrolytic enzymes?

2017 Summer

3

MCQ

CH1 - CELL STRUCTURE

The DNA of prokaryotes is naked and circular.Which statement describes how the DNA of eukaryotes differs from that of prokaryotes?

2017 Summer

3

MCQ

CH1 - CELL STRUCTURE

The recently discovered Pandoravirus measures 1000 nm in diameter.The Mimivirus has a diameter of 400 nm.What can be detected using a light microscope...

2017 Summer

4

MCQ

CH1 - CELL STRUCTURE

What are found in chloroplasts and mitochondria?1. DNA2. 70S ribosomes3. mRNA

2017 Summer

3

MCQ

CH1 - CELL STRUCTURE

Boiling the bones and teeth from dead animals can be used to produce a type of glue. The glue is formed from the collagen fibres present in bones and ...

2017 Summer

3

MCQ

CH1 - CELL STRUCTURE

What describes the primary structure of a protein?

2017 Summer

3

MCQ

CH2 - BIOLOGICAL MOLECULES

The diagrams show four monosaccharides with the formula $C_6H_{12}O_6$.Which diagram shows $\alpha$-glucose?

2017 Summer

2

MCQ

CH2 - BIOLOGICAL MOLECULES

Complete digestion of polysaccharides requires all the glycosidic bonds between the monomers to be broken.Amylase only breaks $\alpha$-1,4 glycosidic ...

2017 Summer

3

MCQ

CH2 - BIOLOGICAL MOLECULES

The diagram shows the results of tests on four solutions containing biological molecules. Which shows the solution that contains only starch and prote...

2017 Summer

3

MCQ

CH2 - BIOLOGICAL MOLECULES

The enzyme invertase catalyses the breakdown of sucrose to glucose and fructose.Three different enzyme inhibitors of invertase X, Y and Z were investi...

2017 Summer

4