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The mythical Eurasian magnetic pinching beetle is able to produce and detect subtle variations in local magnetic fields. Male magnetic pinching beetles provide extensive parental care; they stick eggs to their backs using biomagnetic fields and once the space on their back is occupied, they cannot accept more eggs. Once the eggs hatch, males locate and process ferrous-rich food for the young. Female magnetic pinching beetles, on the other hand, provide no parental care. Instead, she simply leaves her tiny eggs with each of the several males with which she mates. Females attract males by producing a long-range magnetic pulse, which also serves as an honest index of female genetic quality and health because it is energetically costly to sustain and impossible to fake. They broadcast this mating call from large metal objects that amplify the signal. Males select females mates based on several factors, including the sheen of her metallic shell and the iron content of a small pebble she provides before laying eggs on the male's back. All this mate choice and reproduction happens quickly; when the rainy season comes, adults get rusty and, no longer able to move, die. Given this description and what you know about mating system evolution, which of the following appear to be reasonable, fitness-enhancing strategies?A. Instead of spending time finding her own iron-rich pebble, females might enhance their fitness by stealing pebbles from other females.B. Low-quality females could enhance their fitness by sitting within the long-range magnetic signal of a high quality female and attempting to intercept males as they come in to mate.C. When a female finds a male, she could enhance her fitness by depolarizing him, causing him to shed the eggs other females have attached to his back and thereby making more space for her own eggs.D. A female could defend prime-broadcasting locations from other females, giving her exclusive access to the males attracted to the signal she broadcasts from her high-quality spot.E. Females could stick themselves magnetically to a male, thereby preventing him from mating with other females.F. Females could reverse the polarity of the magnetic sensing organ in a male after mating with him, thereby making him unable to find other females.G. All of the above are sound fitness-enhancing strategies.H. None of the above are sound fitness-enhancing strategies.
Take a screen shot of the westernblot that you run on Caseit. Interpret the results. Determine the results of this test indicate about the nature of Sam's mutation?
Would you expect any differences in the sizes of the inserts in the two libraries? in brief explain.
A small, impermeable membrane is placed between the anchor cell and the other vulva precursor cells in a larva of C. elegans. What would you expect the result to be.
Explain the nursing care and patient teaching for the patient with a postpartum infection? What will the WBC rise to in case of a postpartum infection?
Suppose that the breeder selects plants that mature in 69 days for the next generation. Approximation the time required for the next generation to mature. What kind of infection do you believe she has in this hand.
Epigenetics refers to the modification of genes that affect the DNA sequence itself.
Explain the three steps of nitrogen conversion from ammonia to nitrogen gas, and for each step identify the representative bacteria, electron donor, electron acceptor, and carbon source.
The new form of life is discovered. It has a genetic code much like that of organisms on Earth except that there are five different DNA bases instead of four and the base sequences is translated as doublets instead of triplets. How various different ..
The Carboniferous swamps were dominated through several extinct relatives of seedless vascular plants. Surviving taxa of these groups are rather small in size compared to their gigantic relatives.
What do you predict would be the main product. How many can the predictions above be used to determine the mechanism by which the fatty acids are released from the fatty acid synthetase.
Discuss how does the genetic variation differ in "Parent" beakers and the respective derivative beakers? Meaning was the gene pool different in either Beaker #1 or Beaker #2 compared to the parent population?
Eye color is expressed thrugh two genes A and B. Dark brown eye color, A, is dominant over lighter brown a. Eye pigment, B, is dominant over lack of eye pigment, b.
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