How is the geneticdetermination of sexestablished in humans?

Biology Today and Tomorrow without Physiology (MindTap Course List)
5th Edition
ISBN:9781305117396
Author:Cecie Starr, Christine Evers, Lisa Starr
Publisher:Cecie Starr, Christine Evers, Lisa Starr
Chapter15: Animal Evolution
Section: Chapter Questions
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How is the genetic
determination of sex
established in humans?

Expert Solution
Step 1

Sexual reproduction is a type of reproduction in which organism under goes different cycles like gametes and adults. The organisms’ produces gametes, male organism produces male gametes like sperms and female organism produces female gametes called ova. The male gamete travels to the female and fuses with it to form a diploid zygote called as fertilization.

Step 2

Karyotype is a total collection of the chromosomes of a organism. For suppose the karytope of humans is 23 pairs of chromosomes. Human beings have 22 pairs of autosomal chromosomes and 1 pair of sexual chromosomes. Autosomes contains genes regarding different body functions, and produces proteins necessary for body activities. They do not determine the sex of the offspring. Sex chromosomes are the chromosomes which determine the sex of the off spring.  

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