Cellular Differentiation

Question 1

Blastocyst

Answer 1

Early human embryo composed of unspecialised cells.

Question 2

Bone marrow

Answer 2

Common source of tissue adult stem cells in humans.

Question 3

Differentiation

Answer 3

Process of cell specialisation involving the selective switching off and on of certain genes.

Question 4

Embryonic stem cell

Answer 4

Type of stem cell capable of differentiating into all of an animal’s cell types.

Question 5

Ethics

Answer 5

Moral values that ought to govern human conduct.

Question 6

Meristem

Answer 6

Group of unspecialised plant cells capable of dividing repeatedly throughout the life of the plant.

Question 7

Regulation

Answer 7

Form of control to ensure the quality of stem cells used and the safety of the procedures carried out.

Question 8

Specialised

Answer 8

Cell that has become differentiated and only expresses genes for proteins specific to that cell type.

Question 9

Therapeutic

Answer 9

Term describing the use of stem cells in the repair of damaged or diseased organs.

Question 10

Tissue adult stem cell

Answer 10

Type of stem cell capable of differentiating into a limited range of an animal’s cell types.

Question 11

Tissue culture

Answer 11

Type of artificial propagation used to produce a clone of a desirable plant.