In eukaryotic cells, which occurs during
mitosis?
a. the duplication of chromatids
b. the replication of DNA
c. synapsis and crossing over
d. fragmentation and disappearance of nuclear
envelope
e. all of these
D
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Your lab instructor hands you a root slide and asks you to show her a cell with condensed chromosomes arranged in a straight line. In which section of the root would you begin your search?
A. It doesn't matter, all zones have the same level of mitotic activity. B. zone of elongation C. zone of maturation D. zone of cell division E. root cap 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 the appearance of root cells in the different zones? 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?
Restriction enzymes recognize and cut DNA at specific nucleotide sequences. Indicate whether the statement is true or false
Figure 23.7
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Refer to the accompanying figure for questions 11 and 12.
The accompanying figure illustrates a portion of the life cycle of a(n) ____.
A. zygomycete B. ascomycete C. basidiomycete D. glomeromycete E. lichen
The gene for human ABO blood type, for which three or more alleles persist in a population at a relatively high frequency, is an example of _______.
A. multiple allele system B. polygenic inheritance C. incomplete dominance D. epistasis E. continuous variation