GEN-3000 Chapter 5: Chapter 5, Genetics Textbook Notes & Definitions
Document Summary
Sex chromosomes: heteromorphic, involved in sex determination. Heterogametic sex the sex that produces gametes with more than one type of sex chromosome: male humans, this sex determines the sex of the offspring. Homogametic sex the sex that produces gametes that are uniform in type and number of sex chromosomes: female humans. Zz/zw: indicates that the female is heterogametic and the male is homogametic, birds. 47 indicates the diploid number of chromosomes. Xxy indicates the chromosomes that are affected. Any individual with a y and more than one x has klinefelter syndrome, but a greater number of x chromosomes leads to an increased: intersexuality. Ambiguous sexual development: below normal intelligence, sterility. 45 indicates the diploid number of chromosomes. X indicates the chromosome that is affected: female genitalia, sterility, skin flaps on the back of the neck, underdeveloped breasts, normal intelligence, many of these individuals are spontaneously aborted.
