Producing new cells
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5 Terms
Describe the events in mitosis after the chromosomes shorten and thicken, becoming visible
Chromosomes line up at/across the equator.
(1)
4 Any 4 marks from 6 but must include
point 3 and any other three points
to get full marks.
2. Spindle fibres attach (1)
3. chromatids are pulled apart. (1)
4. Chromosomes move to opposite ends of cell. (1)
Two nuclei form. (1)
6. Cytoplasm divides (1)
How many types of stem cells are there? And what are they?
Two
Embryonic stem cells which are taken from an embryo at a very early stage.
Tissue stem cells which are found in the body throughout life.
Hierarchy of organ systems
Cells→ tissues→ organs → organ systems
What does the specialisation of cells in animals lead to the formation of?
Tissues and organs
Which of the following does not involve mitosis?
A Synthesis of proteins
B Growth of tissue
C Maintenance of the diploid chromosome complement
D Repair of tissue
A
Note 
Flashcards (39)