BIO 373 SPECIFICATION CORRECT
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Differentiation - ANSWERGeneration of specialized cells during development
Blastomere Development - ANSWEREach blastomere will develop and form its
different cell type even after separation from the other blastomeres
Conditional (strategy for specification) - ANSWERFate is achieved through
interaction with other cells. Neighboring cells influence development (paracrine
factors)
Syncytial (strategy for specification) - ANSWERInsects: Early development of
insects- nuclei divide, not cells --> one cytoplasm, several nuclei= syncytium
Last stage in generation of a new cell - ANSWERDifferentiation: A cell first has to
commit to a certain fate
Specification - ANSWERFirst step in two part commitment process- Labile stage,
can be reversed, cell can differentiate autonomously in a neutral environment
Determination - ANSWERSecond step in two part commitment process- cells can
differentiate autonomously regardless of the environment
Autonomous (strategy of specification) - ANSWERBlastomere (cell originating from
early cleavage of embryo) acquires a set of transcription factors from egg cytoplasm
Transcription Factors - ANSWERMorphogenic determinants- cell has all the
information to drive its fate, no need for any interaction
