Which biome contains the largest tree species in the world?
A) coniferous forest
B) deciduous forest
C) tropical forest
D) arctic forest
A
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The test cross ab/ab × AB/ab is performed. The following number of progeny of each genotype are obtained:
38% AaBb, 12% Aabb, 12% aaBb, 38% aabb. What is the distance (in map units) between the two genes in question? A. 38 centimorgans (cM) B. 24 centimorgans (cM) C. 19 centimorgans (cM) D. 12 centimorgans (cM) E. 6 centimorgans (cM)
What experiment led to an understanding by Kornberg that DNA acted as a template for DNA synthesis?
What will be an ideal response?
Did your problem-solving process lead you to the correct answer? If not, where did the process break down or lead you astray? How can you revise your approach to produce a more desirable result?
What will be an ideal response?
Choose all the characteristics that are true about "active immunity."
> It protects the body against a new infection thanks to antibodies developed by the host during the first exposure to the antigen. > It requires several days to develop. > It can last for a relatively long time, sometimes for life. > Active immunity can be stimulated only by artificial means. It protects the body against a new infection thanks to antibodies developed by the host during the first exposure to the antigen. It requires several days to develop. It can last for a relatively long time, sometimes for life.