Assume that you are studying a trait determined by a number of polygenes. If there are seven phenotypic categories, how many genes are probably involved?
What will be an ideal response?
three gene pairs
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Cardiac muscle has prolonged contraction due to a sodium induced-calcium released process into the cytoplasm of the cell. Cardiac cells can communicate through pore-like channels between cells. List the junction and the organelle involved in cardiac muscle contraction?
A. gap; rough ER B. gap; smooth ER C. adherens; rough ER D. adherens; golgi apparatus E. adherens; smooth ER F. gap; golgi apparatus
The preferred method for long term storage of bacteria is (freezing/refrigeration/lyophilization)
What will be an ideal response?
SAR11 bacteria are now thought to constitute about ________% of all microbial life on earth.
A. 75 B. 10 C. 5 D. 25
In the phalarope, or wadepiper bird, the male is unusual in playing the larger parenting role -- he performs all the egg incubation and chick care. What unusual behavior might you predict for the female of the species?
A. The female provides sperm to fertilize the male's eggs. B. The female is part of a large harem of females, under the domain of a single male. C. The females compete to mate with the males, who choose among them. D. The females have dull, brown coloring that keeps them well-camouflaged. Clarify question: What is the key concept addressed by the question? What type of thinking is required? Gather Content: What do you already know about traditional roles of mate selection and parental investments? What other information is related to the question? Choose Answer: Given what you now know, what information is most likely to produce the correct answer? Reflection: 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?