Producing New Cells Flashcards
What is the order of multicellular organisation?
Cell, tissue, organ and system
Example: cardiac muscle cell, cardiac muscle tissue, heart and cardiovascular
Where are chromosomes located in an animal cell
Nucleus
What does diploid mean?
Two sets of matching chromosomes in the nucleus
How many sets of chromosomes are there in an animal cell?
2
How many chromosomes are there in an animal cell
46 (human)
Why is it important the chromosome number is maintained during mitosis?
So that no Genetic information is lost.
List 2 ethical issues associated with the use of embryonic stem cells
- The embryo is killed in order to obtain the stem cells.
- Creating embryos purely for research
What can a stem cell do?
They are able to self renew (make copies of themselves).
They are unspecialised, but can differentiate in specialised cells.
They are involved with growth and repair.
What are the types of stem cells?
Embryonic and tissue (adult)
What can an adult stem cell do?
Can differentiate in a limited range of specialised cells.
(Eg. Stem cells from bone marrow can specialise into different types of blood cells.)
What can an embryonic stem cell do in terms of the ability to specialise?
They differentiate into any specialised cells type.
Events of mitosis
