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- How does sex determination in the XX-XY system differ from sex determination in the ZZ-ZW system?Describe the XX-XO system of sex determination. In this system, which is the heterogametic sex and which is the homogametic sex?In the X-Y and Z-W systems of sex determination, which sex is theheterogametic sex, the male or female?
- Human females have two X chromosomes (XX); males have one X and one Y chromosome (XY). a. With respect to X-linked alleles, how many different types of gametes can a male produce? b. If a female is homozygous for an X-linked allele, how many types of gametes can she produce with respect to that allele? c. If a female is heterozygous for an X-linked allele, how many types of gametes can she produce with respect to that allele?Can a male be a carrier of red-green color blindness?Is it possible for a sex-linked disease to pass from one generation to the next without appearing in any offspring?