Which class of genes controls the developmental identity of segments along the anterior—posterior axis?
What will be an ideal response?
Homeotic genes
Biology & Microbiology
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The evolutionary mode in which species evolve rapidly at first and then remain stable for very long
periods of time is called
a. catastrophism. b. uniformitarianism. c. disruptive selection. d. punctuated equilibrium. e. anagenesis.
Biology & Microbiology
The embryonic root tip is indicated by the letter ____
a. A b. B c. C d. D e. E
Biology & Microbiology
In the process of initiation, RNA polymerase and several regulatory proteins bind to a(n) ____________________ that
marks the beginning of a gen Fill in the blank(s) with the appropriate word(s).
Biology & Microbiology
B-cell differentiation is stimulated by ______.
A. complement proteins B. interferons C. antibodies D. interleukins E. lipids
Biology & Microbiology