This preview shows pages 1–3. Sign up to view the full content.
This preview has intentionally blurred sections. Sign up to view the full version.View Full Document
Unformatted text preview: 4-25-08 Stem Cells34.1. The paracrine factor that causes cells to differentiate into neurons is known as:A) serotininB) dopamineC) noradrenalineD) GABAE) nerve growth factor34.2. Nerve growth factor (NGF) is found in large quantities in ____________.A) willow barkB) urineC) snake venomD) musclesE) nerves34.3. Antibodies to __________prevents the differentiation of neurons. A) NGFB) EGFC) oncogenesD) proto-oncogenesE) neurotransmitters34.4. Which of the following is false about embryonic stem cells?A) they have the complete genome.B) they divide indefinitely.C) they can give rise to any cell type in the bodyD) they come from the trophoblastE) they contain a nucleus34.5. The cells of the ectoderm are known as ____________stem cells.A) memory cellsB) embryonic stem cellsC) lineage-restricted stem cellsD) uncommitted stem cellsE) committed stem cells34.6. Chemicals that diffuse from one embryo cell to another are known as:A) endocrine factorsB) hormonesC) paracrine factorsD) neuromodulators...
View Full Document
This note was uploaded on 10/28/2008 for the course BIO G 110 taught by Professor Wayne,r. during the Fall '07 term at Cornell.
- Fall '07