Choose the one most appropriate response for each.
A. Interphase
B. Telophase
C. Centrosome
D. Prophase
E. Metaphase
F. Anaphase
G. Microtubules
H. Chromatid
I. Centriole
A. Stage when chromosomes are loosely spread out and invisible under a light microscope
B. Final phase of mitosis; daughter nuclei re-form
C. Duplicated during prophase and moves to opposite sides of the cell
D. Chromosomes condense and mitotic spindle begins to form
E. Chromosomes line up at spindle equator
F. Sister chromatids separate and move to opposite spindle poles
G. Form the mitotic spindle
H. Half of a chromosome in prophase
I. In pairs in some eukaryotic cells; move to poles during spindle formation
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_____ selected species have a low rate of per capita growth.
A. r- B. p- C. K- D. n-1 E. n-
In the early 1900s, many people, particularly in the southern U.S., suffered from infections
with parasitic hookworms. Many of these hookworms feed on blood cells of the host and thus also consume iron that is found in red blood cells. A symptom of a heavy infection is a craving to eat dirt—particularly clay-like soils with a high iron content. Thus, for these people, iron is a __________.
a. tradeoff b. constraint c. part of the organism’s niche d. nonlimiting resource
How do eukaryotic and prokaryotic control of gene expression differ?
What will be an ideal response?
I think the proactive stance is a better attitude to promote than after-the-fact worrying! When planning a long week of sunbathing on the beach, What type of DNA damage should sunbathers be aware of before hitting the beach?
A. thymine dimers B. photolyase-induced mutations C. activation of uvr A, B, and C genes D. decreased telomere length