What is the average length of M phase?
a) about a day
b) 4 hours and 35 minutes
c) about 10 minutes
d) about 10 hours
e) about 1 hour
Ans: e) about 1 hour
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Experimental mutations in the timing of Hox gene expression cause lab mice to develop deformed limbs. This is an example of
A. evolution of a new gene to code for the new morphology. B. homeosis. C. heterochrony. D. a change in spatial pattern of gene expression. Clarify Question · What is the key concept addressed by the question? · What type of thinking is required? · What key words does the question contain and what do they mean? Gather Content · What do you already know about heterochrony? Consider Possibilities · Consider the different answer options. Which can you rule out? Choose Answer · Given what you now know, what information and/or problem solving approach is most likely to produce the correct answer? Reflect on Process · 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?
West Nile virus has been detected in ________ states of the United.States.
A. 50 B. 10 C. 25 D. 47
A number of characteristics are very similar between charophytes and members of the kingdom Plantae. Of the following, which characteristic does not provide evidence for a close evolutionary relationship between these two groups?
A) alternation of generations B) chloroplast structure C) cell plate formation during cytokinesis D) sperm cell structure E) ribosomal RNA nucleotide sequences
A (colony/habitat/biofilm) is a mixed population of microbes growing together on surfaces
What will be an ideal response?