GENETICS AND EVOLUTION
EVOLUTION
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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All offspring will be short-winged
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All females will be long-winged, and all males will be short-winged.
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All females will be short-winged, and all males will be long-winged.
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Half of the males and females will be short-winged, and half will be long-winged.
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Detailed explanation-1: -The inheritance of short wings in Drosophila fruit flies is an X-linked, recessive trait. Which would most likely result if a short-winged female mates with a long-winged male? All offspring will be short-winged.
Detailed explanation-2: -Which would most likely produce a mutation that is passed on to offspring? A gamete with an extra chromosome forming.
Detailed explanation-3: -Mutations are changes in the genetic sequence, and they are a main cause of diversity among organisms. These changes occur at many different levels, and they can have widely differing consequences.
Detailed explanation-4: -Radiation injures tissue by ionizing molecules within body cells, that is, depositing energy and causing an electron or electrons to be removed from an atom of the molecule. These ionized molecules may be inactivated and cell death may result.
Detailed explanation-5: -Most nocturnally active moths are attracted to light, a phenomenon known as positive phototaxis.