Ch.7 HW ans key - Ch.7 HW ans. Key 091709 MCQs: 1) 2) 3) 4)...

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Ch.7 HW ans. Key 091709 MCQs: 1) C 2) A 3) E 4) B 5) B T/F: 1) T 2) F 3) T 4) F 5) F SQ: 1) The PAR is a region of similarity between the X and Y chromosomes that is responsible for pairing the X and Y chromosomes in meiotic prophase I. Genes in this region is present in two copies in both males and females and thus are inherited like autosomal genes, whereas the inheritance of other Y genes are only from father to son. 2) Diploid insects are female, whereas haploid insects are male. An egg that is fertilized by a sperm develops into a female, and an egg that is not fertilized develops as a male. 3) Males exhibit the phenotypes of all X-linked traits, regardless of whether an X- linked allele is normally recessive or dominant. Males inherit X-linked traits from their mothers and pass to their daughters, but not to their sons. 4) A) 1; b) 0; c) 0; d) 1; e) 1, f) 2; g) 0, h) 2; i) 3 5) Dosage compensation involving the X chromosome Problems: 1) No. Cathy is most probably a carrier. As the color blindness is X-linked recessive,
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Ch.7 HW ans key - Ch.7 HW ans. Key 091709 MCQs: 1) 2) 3) 4)...

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