U1 snRNA consist of four hairpins, one intron pairing strands and one sm binding domains.

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#Unit 4. Cell Communication and Cell Signaling

Class II, but not class I, presentation is inhibited by treatment of the cells with an agent that blocks endocytic processing within the cell (chloroquine).

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#Unit 5. Developmental Biology

Fate map, 

A diagram that “maps” the larval or adult structures onto the region of the embryo from which they arose.

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#Unit 5. Developmental Biology

Commitment

The commitment of cells to specific cell fates & their capacity to differentiate into particular kinds of cells (cell has began in a direction towards a specific fate).

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#Id: 85

#Unit 5. Developmental Biology

Commitment

At this stage the cell or tissue does not appear phenotypically different from its uncommitted state, its developmental fate has become restricted.

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#Id: 86

#Unit 5. Developmental Biology

Stages of commitment- 

1- Specification 

2- Determination

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#Id: 87

#Unit 5. Developmental Biology

Cell Specification

cells become specified to a specific fate