genetics - Genetics 10-20-10 Objectives Describe the...

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Genetics 10-20-10
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Objectives Describe the molecular basis of inheritance
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Genetics Gametogenesis Production of gametes (male and female sex cells) Spermatogenesis sperm Oogenesis ova
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Mitosis vs Meiosis Mitosis Cell division 2 daughter cells Fully paired chromosomes
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Chromosomes Species specific Turkeys – 41 Horses – 32 Cattle – 30 Humans – 23 Swine - 19 Sheep and goats cant make babies because their chromosomal number is different
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Spermatogenesis Mitosis From primordial germ cell to primary spermatocyte to secondary Meiosis Secondary spermatocyte to spermatids to functional sperm Spermiogenesis Maturation process to get functional sperm Fsh stimulates spermiogenesis Diploid and haploid
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Oogenesis Mitosis Primary germ cell to primary oocyte and secondary oocyte Primary= makes two polar bodies Meiosis Secondary Oocyte to ovum go under meisosis that makes one polar body and one ovum Polar bodies- cell with no function that eventually undergo ab
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Ovum Why so large?/ Why not create 4 ovum that are smaller? Outside of ovulated ovum=zona pelucida- limits how large the cells can get and growth occurs here
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Fertilization Formation of diploid zygote from haploid sperm and ovum Paired chromosomes
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Chromosomes DNA – deoxyribonucleic acid 4 base nucleotides Genes 2 copies Locus – location of gene on chromosome Code for proteins mRNA), tRNA, rRNA,
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Protein Formation DNA to mRNa to Protein Transcription
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This note was uploaded on 01/09/2012 for the course ANSC 243 taught by Professor Black during the Fall '10 term at Maryland.

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genetics - Genetics 10-20-10 Objectives Describe the...

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