Figure 2 illustrates how Pitx1 transcription is regulated in different tissues. The center image is that of a stickleback embryo. The drawings in the surrounding boxes show the Pitx1 gene region and activator proteins present in the jaw, pelvis, eye, or pituitary tissues. Note that for simplicity, we are only showing one activator molecule present in a particular tissue. In reality, many activators are present in a particular tissue at any one time. Activator molecules with specific shading can bind to switches with the same shading. 1. List all the tissues shown in Figure 2 that express the Pitx1 gene.

Question 14 If the cell membrane is severley damaged, the cell will O use special proteins to plug any holes repair the damage make cholesterol and ergosterol to repair the damage O die O rapidly reproduce

QUESTION 11 In this gel image, click on the band that represents the molecule that is smallest in size (mass). Coloctod Coordioator

QUESTION 10 Pollution from human activities has only minor effects on the environment, so the primary concern when pollution occurs is that it affects human health.  True  False

QUESTION 47 Solute movement from compartment A to compartment C is known as Membrane D Compartment A Compartment B Compartment C Membrane E excretion secretion resorption absorption

Question 3 Cells have evolved methods of repairing UV irradiation damage. All of the following are repair mechanism for UV damage EXCEPT (which is false?) O excision repair O activation of photolyase O light repair O dark repair O increased protein synthesis to replace denatured proteins Question 4

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Question 13 Trypanosomes that infect humans are transmitted by Obiting insects O contaminated water contaminated food O aerosols O parasitic worms

Which one is right