Late mRNA products in T4 phage include
A. phage structural proteins.
B. proteins involved in cell lysis and phage release.
C. proteins that help with phage assembly without becoming part of the virion.
D. All of the above are correct.
Answer: D
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a - glucose is present in potatoes and b - glucose is present in wood. Both are glucose molecules but one can be used by humans to synthesize ATP and one cannot. Based on this information, what is the best explanation on why humans can only digest one of the glucose types?
A. a - glucose and b - glucose are stereoisomers with OH groups oriented differently. B. a - glucose is C6H12O6 and b - glucose is C5H12O6. C. Only a - glucose can form polysaccharides. D. a - glucose is a chain and b - glucose is a ring. 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 the structure of carbohydrates? 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?
You have discovered a new species of seal and are observing their behavior on a beach. You see groups of females affiliated with a single male. What data support the hypothesis that sexual selection played a role in the evolution of these behaviors?
A. Most of the offspring of a single group are parented by the male that defends the group. B. Male parentage is independent of group affiliation—females mate with any male on the beach. C. Males spend a large amount of energy on behavioral displays and fighting with other males. D. Females mate on the sly with different males so the parentage of the offspring is uncertain. E. Males switch groups regularly and take turns defending all of the females on the beach from predators.
Researchers found three genes on chromosome 22 in chimpanzees that, when compared to our human genes, have given us insight into our evolution. What were those three genes?
A. genes for speech development, hearing, and smell B. genes for chest size, cranial size, and leg length C. genes for speech development, opposable thumbs, and leg length D. genes for taste, opposable thumbs, and bipedalism E. genes for food preference, bipedalism, and cranial size
Tissue whose cells are striated and fused at the ends
by adhering junctions so that the cells contract as a unit is __________ muscle. a. smooth b. skeletal c. visceral d. cardiac e. none of these