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The Nature of Sex

The Nature of Sex

The Nature of Sex. Ricki Lewis Klug and Cummings. Platypus Sex Chromosome. Platypus - Echidna Earliest type of mammal duck like bill, web feet,fur, and mammary glands The platypus, long thought a strange creature, just got stranger Researchers discovered that it has 10 sex chromosomes,

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504 views • 35 slides
Genetics

Genetics

Genetics. Chapters 11-12. True-breeding Hybridization P generation F 1 generation F 2 generation Alleles Dominant Recessive Homozygous Heterozygous (hybrid). Vocabulary. Law of segregation Law of independent assortment. Laws. http://www.bozemanscience.com/probability-in-genetics.

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463 views • 31 slides
Chapter 12-1 Chromosomes and Inheritance patterns

Chapter 12-1 Chromosomes and Inheritance patterns

Chapter 12-1 Chromosomes and Inheritance patterns. Objectives. Explain the role of sex chromosomes in sex determination Describe how sex linkage affects the inheritance of traits Explain the effect of crossing over on the inheritance of genes in linkage groups

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297 views • 28 slides
Cellular Basis of Genetics

Cellular Basis of Genetics

Cellular Basis of Genetics. Medical Genetics. Emphasis. Euchromatin & Heterochromatin Sex Chromatin Lyon hypothesis. Structure of Eukaryote. 1 ? Chromotin & Chromosome. Chromatin : Flemming (1882). Chromosome : Waldeyer (1888). 1 ? Chromotin & Chromosome

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311 views • 19 slides
Sex Determination

Sex Determination

Sex Determination. in Mammals. Importance?. Does it has any economic role in livestock farming system? Cattle Poultry Fish Wildlife (may be). A Sequential Process. Chromosomal Sex Gonadal Sex Phenotypic Sex. Chromosomal Sex at Fertilization. Female ovum always carries - X X

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157 views • 9 slides

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