Lecture 10 objectives.doc

Lecture 10 objectives.doc - Lecture 10 objectives BIO 204 1...

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Lecture 10 objectives BIO 204 1. Give a brief description of the genetic advantage of sex. It mixes genomes from different people to produce offspring that are usually genetically different from each other and from both their parents. 2. sketch the ovary and the testis, pointing out the similarities and differences and identifying the “equivalent” cells. 3. Draw a table showing the cells that are targeted by LH and FSH in males and females, and the hormones that are secreted by these cells
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4. Draw the hypothalamus pituitary gonadal axis for males and females, clearly showing the different hormones involved. Use the diagrams from my notes to check your drawings. Hypothalamus (Males) V Anterior Pituitary V Luteinizing Hormone Follicle Secreting Hormone V V Leydig Cells Sertoli Cells V V Androgens Estrogens Hypothalamus (Females) V Anterior Pituitary V Luteinizing Hormone Follicle Secreting Hormone V V Thecca Cells Granulosa Cells (Become Luteal Cells after ovulation) V V V Androgens Estrogens Progesterone, Estrogen, Inhibin 5. Starting with cholesterol, describe the synthetic pathways for gonadal steroid hormones.
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8. Summarize how sexual development (gonads, external genitalia) depends on the presence of XX or XY chromosomes. Describe the genotypes and phenotypes for Turners and Klinefelters syndromes.
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