33, If a removes a from an eight-celled human preembryo developing in a laborato

Question

33, If a removes a from an eight-celled human preembryo developing in a laboratory dish and tests it for a detected, the remaining using gene. If abnormal gene is not completes development into an individual is implanted into a woman, where it type of development free of the inherited disease. Do you term this A. Indeterminate cleavage. B. Determinate cleavage. C. Spiral cleavage D. Complete cleavage. E. Incomplete cleavage. 34. Fertilization in the earthworm is accomplished by the use of the A. nephridia B. clitellium C. flame cells D. trachea E. typhosole 35 Many physicians administer antibiotics to patients at the first sign of any disease symptoms. Why can this practice cause more problems for these patients, and for others not yet infected? A. The antibiotic administered may kill viruses that had been keeping bacteria in check. B. Antibiotics may cause other side effects in patients, C. Overuse of antibiotics can select for antibiotic- resistant strains of bacteria. D. Particular patients maybe allergic to antibiotic. E. Antibiotics may interfere with the ability to identify the bacteria present. 36. The medicinal leech, was once used to withdraw unhealthy blood from patients, produces which of the following to ensure blood flow? A. antibiotics B, antibodies CanticoagulantA. D blood clots E suture material 37. Which molluscan class includes members that undergo embryonic torsion? A. Polyplacophora. B. Bivalvia C. Cephalopoda D. Gastropoda E. All molluscan classes have this characteristic

Explanation / Answer

Question number 38 : The correct answer is E ( double fertlisation which is common in angiosperms/flowering plants produces a diplod zygote and a triploid endosperm.

Question number 39 : The correct option is D

Sepals : Are the green structures which are outermost

Petals are the colured structures found beneath the sepals

stamens : male structures

Carpels : Female structures

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