'Somes' presentation slideshows

Genetics

Genetics. The study of the mechanism of heredity Basic principles proposed by Mendel in the mid-1800s. Genetics. Diploid number of chromosomes In all cells except gametes Diploid number = 46 (23 pairs of homologous chromosomes) (For Humans!) 1 pair of sex chromosomes

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Meiosis

Meiosis. https:// www.khanacademy.org/science/biology/cellular-molecular-biology/meiosis/v/chromosomal-crossover-in-meiosis-i. What is Meiosis Exactly?. Meiosis is a form of cell division that halves the number of chromosomes when forming specialized reproductive cells such as gametes or spores

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Cell Reproduction and Division Ch 8

Cell Reproduction and Division Ch 8. Chromosomes. Chromosome : DNA wrapped up w/ histones (proteins) = organized Chromatin : uncoiled chromosome= unorganized DNA. Chromosome #. All species have their own characteristic # of chromosomes in each cell. Chromosome Number.

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Week 11

Week 11. CHROMOSOMES Chapter 10 pages 180-186 Genetics I Chapter 11 pages 189-201. HOMEWORK. Chapter 10 pages 180-186 Chapter 11 pages 190 - 207. CHROMOSOME NUMBER AND STRUCTURE. Crossing over of chromosomes creates variation within a population during meiosis

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Extra credit problem for Lecture #4

Extra credit problem for Lecture #4. An agouti mouse is crossed to a white mouse and all the F1 offspring are agouti. An F1 female is crossed to an F1 male, and the offspring are: 11 agouti: 5 white: 4 black

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BIO 105

BIO 105. Meiosis. Overview of Meiosis. Consists of 2 rounds of division unlike mitosis in which there is only one round of division It produces haploid (1n) cells from diploid (2n) cells Gametes are produced from somatic cells.

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What is Meiosis Exactly?

What is Meiosis Exactly?. Meiosis is a form of cell division that __________ the number of chromosomes when forming specialized reproductive cells such as gametes or spores There are ___ stages of meiosis, Meiosis 1 and meiosis 2 Meiosis 1 and 2 create 4 _________ cells all together.

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