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Standard XII
Biology
What Are Sex Chromosomes?
If Aphids rep...
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If Aphids reproduce parthenogenetically in summer, how are male formed?
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Parthenogenesis is the development of a female egg into a new individual without the contribution of a male set of chromosomes.
In a hypothetical pond, two populations of fish are found; one reproduces through sexual reproduction, the other through parthenogenesis. Initially, the parthenogenetic fish are a larger population when the pond is first studied. However, researchers soon observe that the parthenogenetic fish are more frequent hosts for a new blood-borne parasite than the sexually reproducing fish. As a result, the sexually reproducing population increases and the parthenogenetic population decreases.
Which of the following best explains the reason for the shift in population numbers?
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A diploid egg, formed in embryo sac developed directly from nucellus, parthenogenetically grows into embryo. The apomixes is?
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What Are Sex Chromosomes?
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