Term
| What animal was the person (from 50 years ago) associated with |
|
Definition
|
|
Term
| Loosely connected cells that act independantely in the embryo are referred to as? |
|
Definition
|
|
Term
| Name one historical dev. biologist from at lest 50 years ago. |
|
Definition
|
|
Term
| Give an example of a substrate adhesion molecule |
|
Definition
|
|
Term
| Cellular communication involving actual contact is called? |
|
Definition
|
|
Term
| The phenomena of nuclear transcript being processed such that exons might be treated as introns desribes post-translational control mechanism referred to as? |
|
Definition
| differential RNA splicing |
|
|
Term
| As cells pass through the final stage of commitment in dev., their prospective potency will become equal to their? |
|
Definition
|
|
Term
| The ability of the grex slime mold to change the fate of cells dependant on their location within the slug is referred to as? |
|
Definition
| conditional specification |
|
|
Term
| When only some of the mRNA's transcribed in a nucleus are transported into the cytoplasm, this is an example of? |
|
Definition
| differential RNA selection |
|
|
Term
| If cell adhesions between cells AA are greater than BB or AB, then A celss will sort to? |
|
Definition
|
|
Term
| The fundamental component of chromatin composed of histones and DNA is called the? |
|
Definition
|
|
Term
| Proposed by Yves Delage in 1895, the ultimate test of genetic constancy was achieved in 1997 by? |
|
Definition
| somatic cell nucleur transplant. George Campbell and DOLLY |
|
|
Term
| A differentiated cell will still share two charecteristics with all other differentiated cells. One of these is? |
|
Definition
|
|
Term
| Tethering of a transmembrane cadherin molecule to actin microfilaments in the cell cytoplasm requires? |
|
Definition
|
|
Term
| An example of a molecule that confers ability to respond to an induction event is? |
|
Definition
|
|
Term
| In chromatin, the composite structure made up of 140 base pairs of DNA wrapped around a octamer core of histones is called a? |
|
Definition
|
|
Term
| A polypeptide produced in the sertoli cells that gives negative feedback to the anterior pituitary |
|
Definition
|
|
Term
| Give an example of a signal transduction pathway that is based on the receptor tyrosine kinase (RTK) model |
|
Definition
|
|
Term
| The phenomena of nuclear transcript being processed such that exons might be treated as introns describes a post-translational control mechanism referred to as? |
|
Definition
| differential RNA splicing |
|
|
Term
| This large molecule is frequently found between cells and functions as a spacer to create cell-free areas for migrations. |
|
Definition
|
|
Term
| Dark bands in polytene chromosomes represent regions of chromosomal DNA incapable of transcription and are called? |
|
Definition
|
|
Term
| Give an example of a non-flagellated sperm. |
|
Definition
|
|
Term
| The single most important distinguishing charecteristic of a differentiated cell is its? |
|
Definition
|
|
Term
| Production site of GDNF in the male? |
|
Definition
|
|
Term
| A type of molecule composed of linear repeating chains of dissaccharides of which one contains an amino group. |
|
Definition
|
|
Term
| An example of a juxtacrine signal transduction pathway would be? |
|
Definition
|
|
Term
| ATPase enzyme attached to the A tubule of a typical flagellar axoneme? |
|
Definition
|
|
Term
| Type of specification that is based on cytoplasmic interactions prior to cellurization? |
|
Definition
|
|
Term
| Type of cell migration dependant on chemical gradients in solution |
|
Definition
|
|
Term
| Name one molecule found in a signaling pathway that serves double duty in another cellular process or function that is not directly involved in signaling? |
|
Definition
|
|
Term
| Metezoan animals that normally form the anal region 2nd during gastrulation? |
|
Definition
|
|
Term
| Sperm undergo differentiation during the phase of gametogenesis called? |
|
Definition
|
|
Term
| Cells that form sheets and tubes are referred to as? |
|
Definition
|
|
Term
| Increased DNA compaction is achieved in sperm by the histon like protein? |
|
Definition
|
|
Term
| The first spermatogenic cells that are haploid are |
|
Definition
|
|
Term
| Term for the orignal stem cell line from which gonial cells are derived in all sexes? |
|
Definition
|
|
Term
Differential distribution of the bicoid and nanos mRNA in the Drosophila egg prior to fertilization is achieved by?
microfilaments
modifications of the 3' UTR
modification of the 5' poly A tail
tethering proteins in the oocyte membrane
modification of the 5' UTR |
|
Definition
| modifications of the 3' UTR |
|
|
Term
In eukaryotic organisms, RNA transcript sequences that don't code for the AA sequence of a protein are called?
enhancers
promoters
exons
introns
mutations |
|
Definition
|
|
Term
Which pair is correctly matched?
SMAD4 - juxtacrine receptor
Notch - juxtacrine receptor
JakStat - dependent on integrin recept.
BMP4 - hedgehog family
TGF-B - initiates presenilin1 |
|
Definition
| Notch - juxtacrine receptor |
|
|
Term
| Kinase mediated activation of specific signal transducers and activators of transcription induced by the production of dimerized receptors is a charecteristic of? |
|
Definition
| JakStat signal transduction pathway |
|
|
Term
The premise that clones are destined to premature death because of shortened telomeres was disproved by?
Wilmut
Yanagimachi
Spemann |
|
Definition
|
|
Term
| Growth in which shape changes b/c components grow at the dfferent rates? |
|
Definition
|
|
Term
| Which of the following terms are related to an animal with regulative type development? |
|
Definition
| cell fate will change dependant on their location in the embryo |
|
|
Term
Which of the following represents an incorrect hormone target cell interaction in a male mammal?
FSH on sertoli cells
GDNF on spermatogonia
LH on Leydig
LH on thecal cells
inhibin on AP |
|
Definition
|
|
Term
| The teratogen-like plant alkaloids jervine and cyclopamine generate cyclopia in vertebrates by inhibiting synthesis of this compound |
|
Definition
|
|
Term
We talked about Pax6 protein being necessary for imparting competence to certain tissues involved in induction of the lens of the eye. Which of the following techniques would be most helpful in determining the spatial and temporal production of the RNA responsible for PAx6 production?
in situ hybridiztion
polymerase chain reaction
zenoplastic transplants of the optic cup |
|
Definition
|
|
Term
In a generalized model of receptor tyrosine kinase pathways one could expect
multiple endpoints
cascade of kinase mediated events
activation of dormant transcription factors
phospohrylation at a tyrosine residue on an inactive molecule
all of above |
|
Definition
|
|
Term
CC the cat clone of Rainbow is strong correlative evidence for?
selective nuclear mRNA processing
post-translational control of gene expression
deactivation of an entire chromosome |
|
Definition
| deactivation of an entire chromosome |
|
|
Term
| Why will sponges dissociate in Ca reduced seawater but not in Mg reduced seawater? |
|
Definition
| Cadherin binding and Ca binding sites. Ca important for cell adhesion. |
|
|
Term
| Differential gene expression from enetically identical nuclei creates different cell types. What are three major levels at which gene expression might be controlled and give one example of each. |
|
Definition
transcription - alterations of RTK pwy
nuclear RNA processing - introns are spliced for activation
mRNA translation - induction
post-translational modifications |
|
|
