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Here are the following choices to the question above.a.biodiversity.b.habitat preservation.c.habitat fragmentation.d.biological magnification.</span></span></span>The development of a shopping mall can split a natural habitat into smaller parts. this effect is known as <span>habitat fragmentation.
</span><span><span>Habitat fragmentation is the breaking up of one patch of habitat into several smaller patches.
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Duchenne muyscular dystrophy is caused by a mutation on the X chromosome, so a male gets it from his mother's X, if she is a carrier. The male child gets a Y and no X from his father, so the disease is always transmitted through the X from the mother. If a female gets Duchenne muscular dystrophy she has to have two X chromosomes, one from a carrier mother and another from from an affected father. This is virtually impossible because most males die before childbearing age and there is no way a female child can get an X from a man who does not live long enough to procreate. About eight percent of carrier women do show some muscle weakness, but they do not have the disease.
Answer: A dominant allele is a variation of a gene that will produce a certain phenotype, even in the presence of other alleles.
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