In Drosophila, the cells created by cleavage contain different developmental signals from the egg called cytoplasmic  

A.  stem cells.
B.  signals.
C.  determinants.
D.  junctions.


C.  determinants.

Biology & Microbiology

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Biology & Microbiology

Eukaryotic cells regulate the expression of multiple genes by having ____

a. individual activators for individual genes b. a few activators that can interact with small subsets of genes c. activators that serve as catalysts for further activator protein synthesis d. a few activators that work in different combinations to activate different genes

e. a single activator that undergoes modifications to enable interaction with different promoters

Biology & Microbiology

How is most O2 transported in the blood?

a. bound to hemoglobin b. as gas c. dissolved in the plasma d. as bicarbonate ions

Biology & Microbiology

The distribution of strawberry plants in a strawberry field is

A. clumped B. random C. uniform D. constant E. homogeneous

Biology & Microbiology