'Nondisjunction' diaporamas de présentation

Medical Genetics

Medical Genetics. Human Anatomy and Physiology II Oklahoma City Community College. Dennis Anderson. Produces daughter cells with 46 chromosomes Used in growth and repair. Mitosis. Mitosis. DNA is duplicated Doubled chromosomes form from duplicated DNA Each cms has 2 identical chromatids.

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THIS

THIS. IS. JEOPARDY. Jeopardy. Mendel. Meiosis. Punnett. Uh-Oh. Probability. Q $100. Q $100. Q $100. Q $100. Q $100. Q $200. Q $200. Q $200. Q $200. Q $200. Q $300. Q $300. Q $300. Q $300. Q $300. Q $400. Q $400. Q $400. Q $400. Q $400. Q $500. Q $500. Q $500.

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chromosomal mutations

chromosomal mutations. Chromosomal mutations Changes in chromosome number Changes in chromosome structure Chromosome testing Karyotyping High resolution analysis Postnatal genetic testing. I. Chromosomal Mutations. possibly affecting more than one gene (multi-gene level)

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The second week

The second week. Day 8. At the eighth day of development, the blastocyst is partially embedded in the endometrial stroma . In the area over the embryoblast , the trophoblast has differentiated into two layers: ( a) an inner layer of mononucleated cells, the cytotrophoblast ,

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HW # 80- Make cookies for the Cookie Mutation Lab Warm up

Week 24, Day Four. HW # 80- Make cookies for the Cookie Mutation Lab Warm up What are the different types of mutations? How are mutations related to evolution? Place your warm up in the center of the table. Place your Lab Evidence Packet (with the essay rubric) in the center of the table.

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Comparing and Contrasting Mitosis & Meiosis

Comparing and Contrasting Mitosis & Meiosis. Objectives. Understand the differences between mitosis and meiosis Recognize the relationships between mitosis and genetic continuity, and between meiosis and genetic variation, among living things

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Notes: When Mistakes Occur

Notes: When Mistakes Occur. Packet 7- Cell Reproduction Pg. 10-11. The diagram to the right, called a karyotype , shows what the chromosomes look like when we stain them (which causes bands) and match them up according to size.

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Chromosomal Basis of Inheritance

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Atypical Meiosis

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Chromosome disorders

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Cloning and Stem Cells

Cloning and Stem Cells. Stem Cells. Cells that have not yet differentiated into their final developmental stage and/or function. http://www.youtube.com/watch?v=NbjlG84cF1c

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Control of cell replacement

Density-dependent inhibition Low amounts of growth factor proteins Growth Factor Secreted by cells stimulating division Enough cells, reaches GF saturation, inhibition. Control of cell replacement. Cancer - Disease of the cell cycle. Excessive division (out of control); tumor

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Chromosomal Disorders

Chromosomal Disorders. Bashdar Mahmud Hussen M.Sc. Biotechnology. Hawler Medical University, Iraq bashdar@res.hmu.edu.iq bmhscience@yahoo.com. Genetic diseases. traditionally - 3 types of diseases 1. genetically determined 2. environmentally determined 3. 1. + 2.

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Nondisjunction Mutations

Nondisjunction Mutations. Chapter 12. Nondisjunction ("not coming apart") is the failure of chromosome pairs to separate properly during cell division.

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Errors of Meiosis Chromosomal Abnormalities

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An acentric chromosome is one that has 1. Two centromeres ? 2. No centromere

When an organism gains or loses one or more chromosomes but not a complete haploid set, the condition is known as ______________. 1 . polyploidy 2. euploidy ? 3. aneuploidy 4. trisomy 5. triploidy. An acentric chromosome is one that has 1. Two centromeres ? 2. No centromere

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Genetic applications

Genetic applications. Crossing over. What is crossing over? Is there an advantage to this?. Telomeres. What are they? Caps at the ends of chromosomes Scientists have determined that telomeres reduce in length each time a cell goes through the cell cycle and divides

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MUTATIONS

MUTATIONS. CHROMSOMES AND GENES. THE IMPACT OF MUTATION. There are 2 types of mutations 1. Chromosomal: changes in the fundamental structure of a chromosome which most likely occur during crossing over at meiosis. 2. Gene: Changes in the nucleotide sequence Both types of mutations:

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Errors of Meiosis Chromosomal Abnormalities

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Chromosomes and Human Heredity

Chromosomes and Human Heredity. Chapter 11.3 Pg. 311. Karyotype Studies. Pairs of homologous chromosomes are arranged in decreasing size to produce a micrograph called a karyotype Scientists have found that chromosomes end in protective caps called telomeres

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