BIO MULTIPLE CHOICE #2 QUESTIONS AND ANSWRS

Which of the following best describes the hydrolysis of carbohydrates? A The removal of a water molecule breaks a covalent bond between sugar monomers. B The removal of a water molecule forms a covalent bond between sugar monomers. C The addition of a water molecule breaks a covalent bond between sugar monomers. D The addition of a water molecule forms a covalent bond between sugar monomers. - Answer-C The addition of a water molecule breaks a covalent bond between sugar monomers. Which of the following best describes a characteristic of DNADNA that makes it useful as hereditary material? A There are many different types of nucleotide bases that can be incorporated into DNADNA. B The nucleotide bases can also be used to provide the energy needed for reproduction. C Nucleotide bases can be randomly replaced with different nucleotide bases to increase variation. D Nucleotide bases in one strand can only be paired with specific bases in the other strand. - Answer-D Nucleotide bases in one strand can only be paired with specific bases in the other strand. Based on the pedigree in Figure 1, which of the following best explains the observed pattern of inheritance? A The trait is autosomal dominant, because the cross between individuals I-3I-3 and I-4I-4 produced an affected offspring. B The trait is autosomal recessive, because the cross between individuals I-1I-1 and I-2I-2 produced an affected offspring. C The trait is sex-linked dominant, because the cross between individuals II-5II-5 and II-6II-6 produced an affected male. D The trait is sex-linked recessive, because the cross between individuals II-2II-2 and II-3II-3 produced an affected female. - Answer-B The trait is autosomal recessive, because the cross between individuals I-1I-1 and I-2I-2 produced a