Which group of genes in Drosophila embryos must be mutated if the result is elimination of a significantly sized, contiguous region of segmentation?

What will be an ideal response?


gap genes

Biology & Microbiology

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The correct sequence for the steps of meiosis I is

A) telophase-anaphase-metaphase-prophase B) 46 chromosomes, 23 chromosomes, then 46 chromosomes C) prophase-metaphase-anaphase-telophase D) anaphase-metaphase-prophase-telophase

Biology & Microbiology

What does the Nernst equation allow us to do?  

A.  Predict the function of a specific type of neuron. B.  Calculate the equilibrium potential for an ion. C.  Use a computer program to model axonal transmission. D.  Calculate the magnitude of depolarization during an action potential.

Biology & Microbiology

With metal pollutants, the best phytoremediation uses ____

a. hydrologic injections that dilute the groundwater b. chemical injections that degrade the pollutants c. plants that take up toxins and store them in aboveground tissues d. plants that prevent the toxins from being absorbed in their tissues e. plants that can breakdown the toxins and release them into the air

Biology & Microbiology

Which is NOT a member of phylum Ascomycota?

a. morels b. yeast c. the black bread mold. d. truffles e. powdery mildews

Biology & Microbiology