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

1

MCQ

CH1 - CELL STRUCTURE

A student used a light microscope to observe a blood smear on a microscope slide.An eyepiece graticule was used to measure the diameter of a white blo...

2024 Spring

4

MCQ

CH1 - CELL STRUCTURE

Which statement explains why it is necessary to use an electron microscope to see the cristae of a mitochondrion?

2024 Spring

4

MCQ

CH1 - CELL STRUCTURE

Some stains can be used to identify cell structures in living cells.A dilute solution of one stain causes the whole cell to appear blue.The blue colou...

2024 Spring

4

MCQ

CH1 - CELL STRUCTURE

When mucus is secreted from a goblet cell, these events take place.1 addition of carbohydrate to protein2 fusion of a vesicle with the cell surface me...

2024 Spring

3

MCQ

CH1 - CELL STRUCTURE

The diagram shows four biological features. Which biological features are present in typical prokaryotes?

2024 Spring

3

MCQ

CH1 - CELL STRUCTURE

Which row shows features that occur in dicotyledonous plant cells and also in typical bacterial cells?key✓ = found in dicotyledonous plant cells and...

2024 Spring

3

MCQ

CH2 - BIOLOGICAL MOLECULES

Which flow chart outlining the test for non-reducing sugars is correct?

2024 Spring

3

MCQ

CH2 - BIOLOGICAL MOLECULES

Which diagrams show the release of a water molecule during the formation of a glycosidic bond?[Image_1: Shows three chemical diagrams each illustratin...

2024 Spring

3

MCQ

CH2 - BIOLOGICAL MOLECULES

Which molecules have a structural formula that contains C=O bonds? 1. amino acids 2. fatty acids 3. glycerol 4. protein

2024 Spring

5

MCQ

CH2 - BIOLOGICAL MOLECULES

Which statement about triglycerides is correct?

2024 Spring

3