What is the total magnification of a microscope if the ocular lens is 10x and the objective lens in place is 32x?
a. 40x
b. 100x
c. 400x
d. 320x
Answer: d. 320x
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You are studying cell cycle progression in yeast cells. If you could prevent cdc2 from associating with the mitotic cyclin, the cells would:
A. arrest in G1. B. arrest in G2. C. arrest in S. D. arrest in prometaphase. E. arrest in metaphase. 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 cdc2/cyclin complexes? 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 causes mutations in DNA?
What will be an ideal response?
Answer the following statements true (T) or false (F)
1. In mitosis, homologous chromosomes do not pair up. 2. In meiosis, homologous chromosomes pair up, allowing crossing-over to occur. 3. If a human zygote has either 45 or 47 chromosomes, it might be assumed that this was due to nondisjunction. 4. A male having an extra X chromosome (XXY) would have Turner syndrome. 5. A female missing an X chromosome (XO) would have Turner syndrome.
Are any of the offspring or parents affected?
a. Yes b. No