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une the following information to answer the next two questions. substrate by then serves as a substrate in a reaction catalyzed by enzyme y to generate product C. 18. A mutation results in a defective enzyme x Which of the following would be consequence of mutation when and only substrate are present? A. No production of B only b. No production of C only c No production of B and C 19.one strain of a diploid organism that generates functional enzyme x (assume the organism is homo zygous dominant for functional enzyme x gene allele) is homozygous for a recessive allele coding for a defective enzyme y. Another strain that assume the organism is generates functional enzyme y homozygous dominant for functional enzyme y gene allele) is for a defective homozygous allele enzyme X crossing those two strains will allow for the production of product C a. only if substrate A is provided b. only if substrate B is provided. c. if substrate A or B is provided. 20 When non-disjunction occurs during meiosis II a pair of sister chromatids fails to separate properly. air of homologues fails to separate homologues c. either sister omatids or a pair of fails to separate properly. 21. When pairs of homologous chromosomes separate correctly during meiosis I a. the maternal chromosomes all move to one daughter cell, and the paternal chromosomes all move to the other daughter cell. b. sister chromatids remain paired. the most of the crossing over has already occurred, with remainder taking place during meiosis II. 22. What are punnett ares used for? a. the result of genetic crosses between organisms of b. known genotypes. DNA seguence of a given gene are the variations Identifying the location where allelic d. Testing for the presence of a recessive allele 23 Aneuploidy can result from independent assortment. b. non-disjunction to cell division c. DNA replication that occurs prior to meiosis d. DNA that occurs prior