TTU Biology 3302 Developmental
Biology Exam 1 Questions & Answers
(Grade A+)
Pattern Formation -
correct answer ✅the special control of cellular differentiation
Morphogenesis -
correct answer ✅the creation of shapes in development
Regulation -
correct answer ✅homeostatic process whereby a group of cells
achieves its original fate, despite the removal or addition of tissue.
Examples: recovery after splitting 2-cell mouse embryo.
Recovery after ADDING tissue is a fusing of black and white tissue
of a mouse.
Specification -
correct answer ✅establishment of the coordinate system
Recording -
correct answer ✅positional value
,TTU Biology 3302 Developmental
Biology Exam 1 Questions & Answers
(Grade A+)
interpretation -
correct answer ✅-conversion of positional values into a qualitative
state
-involves thresholds that are present inside the cell
-rules that allow one to interpret numbers to colors
morphallaxis -
correct answer ✅regulation without growth
Epimorphosos -
correct answer ✅regulation with growth
ex: regeneration or replacing missing parts
what is the of positional information model? -
correct answer ✅1. Specification 2. Recording 3. Interpretation
totipotent -
correct answer ✅cells that form many things, potential to be
anything
, TTU Biology 3302 Developmental
Biology Exam 1 Questions & Answers
(Grade A+)
In the lock and key model, ligand is the _______ and the receptor if
the ___________ -
correct answer ✅ligand is the key and the receptor is the lock
When a cell on the left realizes that its key is not fitting in a lock it
becomes: -
correct answer ✅a source
When a cell on the far right realizes that its lock is not being fit with
any key it becomes -
correct answer ✅a sink
Pluripotent -
correct answer ✅develops most cell types but not all
Recording definition -
correct answer ✅measuring the concentration of a morphogen
and sourcing that information as a positional value which then
involves turning genes "on" or "off."
Biology Exam 1 Questions & Answers
(Grade A+)
Pattern Formation -
correct answer ✅the special control of cellular differentiation
Morphogenesis -
correct answer ✅the creation of shapes in development
Regulation -
correct answer ✅homeostatic process whereby a group of cells
achieves its original fate, despite the removal or addition of tissue.
Examples: recovery after splitting 2-cell mouse embryo.
Recovery after ADDING tissue is a fusing of black and white tissue
of a mouse.
Specification -
correct answer ✅establishment of the coordinate system
Recording -
correct answer ✅positional value
,TTU Biology 3302 Developmental
Biology Exam 1 Questions & Answers
(Grade A+)
interpretation -
correct answer ✅-conversion of positional values into a qualitative
state
-involves thresholds that are present inside the cell
-rules that allow one to interpret numbers to colors
morphallaxis -
correct answer ✅regulation without growth
Epimorphosos -
correct answer ✅regulation with growth
ex: regeneration or replacing missing parts
what is the of positional information model? -
correct answer ✅1. Specification 2. Recording 3. Interpretation
totipotent -
correct answer ✅cells that form many things, potential to be
anything
, TTU Biology 3302 Developmental
Biology Exam 1 Questions & Answers
(Grade A+)
In the lock and key model, ligand is the _______ and the receptor if
the ___________ -
correct answer ✅ligand is the key and the receptor is the lock
When a cell on the left realizes that its key is not fitting in a lock it
becomes: -
correct answer ✅a source
When a cell on the far right realizes that its lock is not being fit with
any key it becomes -
correct answer ✅a sink
Pluripotent -
correct answer ✅develops most cell types but not all
Recording definition -
correct answer ✅measuring the concentration of a morphogen
and sourcing that information as a positional value which then
involves turning genes "on" or "off."
