What is the dissimilarity amongst "fate" and "specification"? -triyambak.org

Practice Questions

TLS Online TPP Program

#Question id: 5147

#Unit 5. Developmental Biology

If cells are transplanted from their normal region in an embryo to a different region in a recipient embryo, such cells will alter their fate, but not their specification
Cell fate describes the allocation of cells to the germ layers, ectoderm, mesoderm, or endoderm, whereas specification describes the exact tissues that each cell will ultimately become
The fate map of an embryo does not change during development -- the fate map of an egg is the same as the fate map of a late blastula -- whereas the specification map of an embryo changes continually as the embryo's development proceeds
The fate of a cell is determined by labelling that cell and following it during normal development, whereas the specification state of a cell is determined by culturing a cell in an artificial medium and observing what tissues form from it

More Questions

#Question id: 2967

#Unit 2. Cellular Organization

G1 is associated with which of the following cellular events?

#Question id: 2968

#Unit 2. Cellular Organization

What is the name of the microtubule-organizing center found in animal cells as an identifiable structure present during all phases of the cell cycle?

#Question id: 2969

#Unit 2. Cellular Organization

In the cells of many eukaryotic species, the nuclear envelope has to disappear to permit which of the following events in the cell cycle?

#Question id: 2970

#Unit 2. Cellular Organization

Describe how Cdc14 triggers the exit from mitosis in the budding yeast, S. cerevisiae.

#Question id: 2971

#Unit 2. Cellular Organization

Which one of the following is the most appropriate match?

Events	Protein	Phases
A. Cohesins are loaded onto chromosomes	I. Mei-S332/Shugoshin	a. G1
B. Cohesins can dissociate from the DNA	II. Polo kinase and Aurora B kinase	b. G2
C. Prevents cohesin phosphorylation, and hence dissociation	III. Scc2-Scc4	c. S
D. Phosphorylation of cohesins	IV. Pds5-Wapl	d. M

#Question id: 2972

#Unit 2. Cellular Organization

Match the following attachment (Column I) with definition(Column II).

Column I	Column II
A. Monotelic Attachment	I. When sister kinetochores attach to microtubules emanating from opposite spindle poles, they are stably attached.
B. Syntelic Attachment	II. When one kinetochore attaches to microtubules emanating from two opposite spindle poles.
C. Amphitelic Attachment	III. When both sister kinetochores attach to microtubules emanating from the same spindle pole.
D. Merotelic Attachment	IV. When only one of the two sister kinetochores attaches to microtubules.

Which of the following is correct?