Inbred strains with individuals of a relatively homogeneous or constant genetic background are often used to determine the influence of genes or the environment on phenotypic variation
Variation observed between different inbred strains reared in a constant or homogeneous environment would likely be caused by genetic factors. What would be the source of variation observed among members of the same inbred strain reared under varying environmental conditions?
nongenetic factors generally categorized as "environmental"
You might also like to view...
While flipping through an agriculture products catalog, you come across the following advertisment, "The Centralized Ripening System—makes large scale hormone distribution even easier!". What hormone does this product distribute?
A. auxin B. abscisic acid C. cytokinin D. ethylene E. gibberellin 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 fruit ripening? How does it relate to the question? Consider Possibilities · What other information is related to the question? Which information is most useful? 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?
Which of the following is a characteristic of underdeveloped countries?
a. high birth rates b. zero population growth c. high percentage of older individuals d. low percentage of young individuals
The bone in the upper arm is the:
a. radius b. ulna c. tibia d. humerus e. femur
Some current research efforts are investigating whether or not ________, a group of prokaryotes with the ability to produce oxygen as a by-product of photosynthesis, can be used as a source of renewable energy by converting sunlight into electricity
A) chlamydias B) spirochetes C) proteobacteria D) cyanobacteria