'Barr bodies' diaporamas de présentation

Sex chromatin bodies Barr body

Sex chromatin bodies Barr body. Organism No. chromosomes Human 46 Chimpanzee 48 Dog 78 Horse 64 Chicken 78 Goldfish 94 Fruit fly 8 Mosquito 6 Nematode 11(m), 12(f) Horsetail 216 Sequoia 22 Round worm 2. What Exactly is a chromosome?.

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Lab # 11 : Sex chromatin bodies Barr body

Lab # 11 : Sex chromatin bodies Barr body. Organism No. chromosomes Human 46 Chimpanzee 48 Dog 78 Horse 64 Chicken 78 Goldfish 94 Fruit fly 8 Mosquito 6 Nematode 11(m), 12(f) Horsetail 216 Sequoia 22 Round worm 2. What Exactly is a chromosome?.

1.01k views • 43 slides

Sex chromatin bodies Barr body

Sex chromatin bodies Barr body. Organism No. chromosomes Human 46 Chimpanzee 48 Dog 78 Horse 64 Chicken 78 Goldfish 94 Fruit fly 8 Mosquito 6 Nematode 11(m), 12(f) Horsetail 216 Sequoia 22 Round worm 2. What Exactly is a chromosome?.

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Regulation of Gene Expression

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Chapter 15: The Chromosomal Basis of Inheritance

Chapter 15: The Chromosomal Basis of Inheritance. Important Point:. If you are having trouble understanding lecture material: Try reading your text before attending lectures. And take the time to read it well!. Chromosomal Basis of Inheritance. Independent Assortment.

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EMBRYO SEXING IN FARM ANIMALS

EMBRYO SEXING IN FARM ANIMALS. Sanjeev Sharma*, Aarti Bhardwaj $ , Shalini Jain # and Hariom Yadav # *Animal Genetics and Breeding Division, # Animal Biochemistry Division, National Dairy Research Institute, Karnal-132001, Haryana, India

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Announcements

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Announcements

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Chromosomal Disorders (Syndromes) ************************

Chromosomal Disorders (Syndromes) ************************. Disorders of Chromosome structure:. 1-Cri-du-chat (Cat cry syndrome):.

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Announcements

Announcements.

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Sex inheritance

Sex inheritance. In humans, fruit flies, XX = female; XY = male. Inheritance of sex is just like any other trait, except it involve inheritance of an entire chromosome. Because there are genes on sex chromosomes, inheritance of certain traits can be sex-linked. Sex Linkage and Determination.

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Identification of Sex

Identification of Sex. Dr Ajee Kuruvilla. Most certain evidences:. Presence of testis in males & ovaries in females. Shown by ejaculation & menstruation respectively after puberty in males & females. Highly probable evidences:.

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Genetics Part III

Genetics Part III. There is a short cut way to do dihybrid crosses by working with one gene at time and determining the probability for that gene and do the same for the second gene. Then multiply the two probabilities together. Cross one trait at a time!.

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Errors of Meiosis Chromosomal Abnormalities

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Errors of Meiosis Chromosomal Abnormalities

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Two Levels of Enzyme Regulation

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Alterations to Mendel

Alterations to Mendel. Incomplete or partial dominance Codominance Multiple alleles and Lethal alleles Gene interactions & multiple genes Epistasis and complementation Effect of environment Extranuclear inheritance Sex-linked, sex-limited, & sex-influenced

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Alterations to Mendel

Alterations to Mendel. Incomplete or partial dominance Codominance Multiple alleles and Lethal alleles Gene interactions & multiple genes Epistasis and complementation Effect of environment Extranuclear inheritance Sex-linked, sex-limited, & sex-influenced

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Gene dosage

Gene dosage. It matters how many copies of genes there are. Snapdragons: heterozygous flowers are pink. Multiple histone genes. Too many of some genes is deleterious. 3 copies of chromosome 21 = Down Syndrome What about sex chromosomes? XX vs. XY

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beyond Mendel - the chromosomal basis of inheritance

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