All the offspring of a cross between a red-flowered plant and a white-flowered plant have pink flowers. This means that the allele for red flowers is ________ to the allele for white flowers
A) dominant
B) codominant
C) incompletely dominant
D) recessive
Answer: C
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Scientists believe that stimulating growth of algae and other organisms can reduce carbon dioxide amounts in the atmosphere. Where is carbon dioxide consumed in a plant cell?
A. Matrix in mitochondria B. Cellulose in cell wall C. Stroma in chloroplasts D. Number of amyloplasts E. Central vacuole 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 know about plants using carbon dioxide? 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?
The fact that the helixes of the DNA strand are arranged in opposite directions gives DNA its _____ characteristics
A. antiparallel B. complementary C. redundant D. water-soluble
How does the phenomenon of horizontal gene transfer muddle the concept of monophyletic groups?
A. Horizontal gene transfer makes it impossible to distinguish monophyletic groups. B. Monophyletic groups are based on the concept that a particular group of species descended from a common ancestor. When horizontal gene transfer occurs, not all of the genes in a species were inherited from the common ancestor. C. Since horizontal gene transfer includes transfer from one group of species to another group with a common ancestor, there is no muddling of the concept of monophyletics. D. All of these are correct.
Sound is "heard" when sound waves cause structures inside your ears to physically vibrate. A signal is then sent to your brain where it is interpreted as sound. What type of receptor in the ear is responsible for the sense of hearing?
A. Mechanoreceptors B. Electromagnetic receptors C. Thermoreceptors D. Chemoreceptors