45. Sexual reproduction(A) allows more offspring to be produced per individual.(B) allows a parent to pass on 100% of their genes to offspring.(C) increases genetic variation.(D) results in the formation of a haploid zygote.(E) only occurs in vertebrates.

45. Sexual reproduction
(A) allows more offspring to be produced per individual.
(B) allows a parent to pass on 100% of their genes to offspring.
(C) increases genetic variation.
(D) results in the formation of a haploid zygote.

(E) only occurs in vertebrates.

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統計： A(0), B(0), C(1), D(0), E(0) #3367686

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1. 題目解析這道題目考察的是有性生殖...

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47. It is well established that developmental biology has impacts on public health. For instance, thalidomide, an anticonvulsive and antiallergic medication, was prescribed to reduce nausea or morning sickness in pregnant women. It was subsequently shown to cause severely deformed limbs (hands and feet, but reduced arms and legs) in children whose mothers took the medication. What might thalidomide do during development?(A) Cause a defect in the fertilization of an egg.(B) Severely alter blastulation in the embryo.(C) Impair neural tube formation.(D) Impair morphogenic fields within the embryo.(E) Block cell division during blastulation.

45. Sexual reproduction
(A) allows more offspring to be produced per individual.
(B) allows a parent to pass on 100% of their genes to offspring.
(C) increases genetic variation.
(D) results in the formation of a haploid zygote.

(E) only occurs in vertebrates.

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