Flashcards in Lecture 4: Growth and Development Deck (13):
Have half the set of chromosomes e.g. sperm and egg (gamete)
Have a full set of chromosome e.g. A fertilized egg or zygote
What is the differentiation of cells programmed by?
The pattern of fenes they express and other factors
Where do signals in the embryo come from?
Cytoplasmic material acquired from the female's oocyte
Why is the cytoplasm heterogeneous?
So at cell division, daughter cells can receive different components of the cytoplasm containing different cytoplasmic determinants
A process in which an embryo gets larger and cells fate is progressively more influenced by signals from surrounding cells
A cell that can form all cell types
Cells that can give rise to several cell types but not all.
Arrangement of cells to form a sheet, held together by cell junctions
What do epithelium do?
Organise our body compartments and seperate them from the external environment
Gives rise to one daughter cell which can divide and differentiate and an undifferentiated stem cell maintains the stem cell population
Can differentiate into few cell types