試題詳解

54. Suppose a mutation occurred in Drosophila in the region of DNA that codes for the protein called bicoid. What is most likely to happen during development?
(A) The fertilized egg will be bipolar.
(B) The embryos will express their father’s genotype.
(C) The polarity of the fertilized egg will be disrupted.
(D) The transcription of developmental genes will stop.
(E) Two sets of limbs will form in a mirror-image arrangement.