Map distances above 50 are considered unreliable due to the occurrence of double-crossovers between the genes
Indicate whether the statement is true or false
TRUE
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The frequency of recombination during meiosis is a function of:
A. the alleles on the genes; recombination happens less frequently among recessive alleles. B. the distance between genes: the closer the genes are, the more frequent the recombination between them. C. the distance between genes: the farther apart the genes are, the more frequent the recombination between them. D. whether or not the genes are sex-linked; X chromosomes recombine much more frequently than do autosomes. E. whether or not the genes are sex-linked; Y chromosomes recombine much more frequently than do the autosomes.
As the Baby Boomer generation ages, more and more joint replacement surgeries take place each year. Hip replacement surgery is the gold standard of all joint replacement surgeries, with many patients able to walk just a few hours after surgery and return home the very next day. In contrast, knee replacement surgery usually requires hospital stays of several days, followed by weeks to months of physical therapy. What best explains why the recovery after hip replacement surgery is so much faster than after knee replacement surgery?
A. The hip joint is more superficial and more accessible to surgeons than the knee joint. B. The hip only moves in one direction, and recovery of one motion is easier than recovering movement in many directions. C. The upper end of the thigh bone has less overall surface contact with the hip bone than its lower end has in the knee with bones of the lower leg. D. The knee joint is stabilized by many more structures (many of which have to be cut) than the hip joint. E. The knee is a type of combination joint, which are difficult to replace. Clarify Question · What is the key concept addressed by the question? · What type of thinking is required? Gather Content · What do you know about the structure of the knee and hip? What other information is related to the question? Choose Answer · Given what you now know, what information 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 process by which a molecule gives up a functional group, and a different molecule immediately
accepts it, is a. condensation. b. cleavage. c. functional group transfer. d. electron transfer. e. rearrangement.
At some time during their life cycles, bryophytes make _____
A) microphylls B) true roots C) true leaves D) sporangia