Which genes are expressed in Drosophila after pattern formation along the A/P axis has been successfully established?  

A.  totipotent genes
B.  bicoid genes
C.  segment polarity genes
D.  gap genes
E.  homeotic genes


E.  homeotic genes

Biology & Microbiology

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Draw a microbial-based nitrogen cycle. In the open ocean there is plenty of sunlight and carbon dioxide for primary production, yet photosynthesis is limited in the open ocean compared to other aquatic environments

What limits photosynthesis in the open ocean? What will be an ideal response?

Biology & Microbiology

Which of the following gene mutations is least

likely to impact the protein? a. A conservative substitution. b. A non-conservative substitution. c. An amino acid deletion. d. An amino acid insertion. e. All would be the same

Biology & Microbiology

It is impossible to get lung cancer unless you smoke cigarettes.

Answer the following statement true (T) or false (F)

Biology & Microbiology

The medicinal leech, once used to withdraw "unhealthy" blood from patients, produces ________ to ensure blood flow from the host?

A. anticoagulants B. antibodies C. blood clots D. antibiotics E. suture material

Biology & Microbiology