PPT-Chromosomal Disorders What happens when meiosis goes wrong?

Author : liane-varnes | Published Date : 2020-04-03

Karyotype Human Chromosomes Humans have 46 chromosomes arranged in 23 pairs Two sex chromosomes determine an individuals sex Females have two copies of the

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Chromosomal Disorders What happens when meiosis goes wrong?: Transcript


Karyotype Human Chromosomes Humans have 46 chromosomes arranged in 23 pairs Two sex chromosomes determine an individuals sex Females have two copies of the large X chromosome Males have one X and a smaller Y chromosome. Also its possible for otherwise healthy people to develop severe illness so any one concerned about their illness should consult their doctor There are emergency warning signs that should signal anyone to seek medical care urgently Emergency Warning EQ:. What is the importance of meiosis in providing genetic variation?. . SPECIALIZED CELLS. You have many specialized cells in your body that can be divided into two groups. . 1. . . SOMATIC. = body cells; make up most of your . Abnormalities in Chromosomal Number. Abnormalities in Chromosomal Structure:. Rearrangements. Fragile Sites. Define:. nondisjunction. polyploidy. aneupoidy. trisomy. monosomy. Abnormalities in chromosomal number. Chromosome number. Phases of meiosis. Meiosis and genetics. Gamete formation. Comparing mitosis and meiosis. Chromosome number. A cell in adult . drosphilia. (fruit fly) has 8 chromosomes, 4 of which came from the fly’s male parent, and 4 of which came from the fly’s female parent.. Meiosis. The process that produces haploid sex cells.. Cells go through 2 rounds of division, called meiosis I and meiosis II. Each division has 4 phases (. similar to . mitosis). Creates 4 haploid cells from 1 diploid cell. Please take out your science journal and outcomes and turn in any missing work to the WIRE basket. Thank you!. . Asexual Reproduction Review. Happens in almost all cells (Somatic cells). 1 parent cell. Chapter 8. Asexual vs. Sexual reproduction. Asexual reproduction – new organisms/cells are genetically identical to parent cells/organisms . Sexual reproduction – offspring have a combination of genes from both parents. . Mrs. Stewart. Biology I . Stewarts Creek High School. Objectives:. Differentiate between the process of mitosis and meiosis. Demonstrate the movement of chromosomes throughout meiosis. Analyze how meiosis leads to genetic variation. R. r. Source: plant-genetics.kais.kyoto-u.ac.jp. ATGGGCACTGCCACT. A chromosome is a single DNA molecule forming a complex with histone proteins. DNA is highly compacted: DNA histone proteins = . chromatin. Key Concepts:. What happens during the process of meiosis?. How is meiosis different from mitosis?. Types of . Reproduction. Section 11-4. ASEXUAL. SEXUAL. 1. One Parent. 2. Binary fission (in prokaryotes) or mitosis in (eukaryotes).. Cells Alive- . http://. cellsalive.com/meiosis.htm. . Meiosis animation. http://. www.youtube.com/watch?v=kVMb4Js99tA. . Meiosis Practice Test. Answer the following questions on the back of your review sheet.. Prokaryotic cell. Plasmid (ring of DNA. ). 50 x Smaller 0.2-2μm. 50 x Bigger 10-100μm. And small rings of DNA called plasmids. Inside a nucleus. Main differences. Prokaryotes:. SIZE – 50 x smaller than eukaryotes. Prepared by Rania Naoufal, M.D.. Learning Objectives. Chromosome structure. Chromatin. Chromatin exists in several alternative configurations, depending on what that particular stretch of DNA is doing. Ababneh, MD. Geneticist . H. uman . being begins life as a fertilized ovum ( zygote), a diploid cell from which all the . cells of . the body . [estimated . at about 100 trillion . (100 x10. 12. )] in number are .

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