Upload File

patterns of inheritance part 4. when non-dysjunction happens during meiosis, a chromosome number...

  • Home
  • Documents
  • Patterns of Inheritance Part 4. When non-dysjunction happens during meiosis, a chromosome number different from the parents can result. This can affect
Download Patterns of Inheritance Part 4. When non-dysjunction happens during meiosis, a chromosome number different from the parents can result. This can affect

If you can't read please download the document

Upload: prudence-barrett

Post on 05-Jan-2016

216 views

Category:

Documents


1 download

Report

Chapter 11.3 – Nondisjunction I.Nondisjunction – the failure of homologous chromosomes to separate properly during meiosis A.Normal Meiosis – one chromosome

Chromosome movements in meiosis and mitosis, madison 2006

Human Chromosomes Variations in Chromosome number ...guralnl/441Cytogenetics.pdfFIGURE 6.29 Uniparental disomy can be produced several mechanisms, involving nondisiunction in meiosis

Meiosis - WordPress.com · 04.01.2018  · Mitosis Meiosis •Two divisions •Homologous chromosomes line up and move to separate daughter cells. •Reduces chromosome number by

Meiosis Meiosis. Vocabulary SOMATIC: Any cell except a sperm or egg AUTOSOME Any chromosome other than a sex chromosome (X or Y) GAMETE An egg or sperm

Meiosis and Chromosome Assortment

Meiosis & Sexual Reproduction Chapter 10. Meiosis & Sexual Reproduction 2Outline Reduction in Chromosome Number Meiosis Overview Homologous Pairs

Minichromosome Analysis of Chromosome Pairing, Disjunction ... · Minichromosome Analysis of Chromosome Pairing, Disjunction, and Sister ... only in mitosis and meiosis ... Minichromosome

CH. 9-3 MEIOSIS · •Identify and draw stages of meiosis. Determine ploidy and chromosome number for different stages of meiosis. •Distinguish between somatic cells and gametes,

Sex Chromosome Abnormalities Occur during non-disjunction of X or Y chromosomes at meiosis I or meiosis II Normally in meiosis to produce eggs, the two

10 - Meiosis and Sexual...10.1 Halving the Chromosome Number nuclear division that reduces chromosome number by half ... meiosis and sexual reproduction allow genetic variation to

Meiosis and Sexual Reproduction Chapter 10. Outline Reduction in Chromosome Number –Meiosis Overview –Homologous Pairs Phases of Meiosis –Meiosis I –Meiosis

MEIOSIS 10.1 HL 10.1 HL. Meiosis Meiosis has a number of overall functions Reduce the chromosome number by half from diploid(2n) to haploid(n). Each gamete

11.4 Meiosis - sedelco.org · Mitosis does not normally change the chromosome number of the original cell. This is not the case for meiosis, which reduces the chromosome number by

1 Meiosis Formation of Gametes (Eggs & Sperm). 2 Facts About Meiosis Preceded by interphase which includes chromosome replication Preceded by interphase

MEIOSIS Chapter 8. Chromosome Pairs Human somatic (body) cells consist of 23 homologous chromosome pairs Identical length, centromere position, and

Chromosome Abnormalities Non-disjunction during meiosis can cause a gamete to have an extra chromosome Trisomy = three copies of the same chromosome. Most

Meiosis reduces the number of Chromosome sets from diploid to haploid

Chromosome the Missing Link Young People Understanding of Mitosis Meiosis

Meiosis - Cell Division · 2020. 1. 22. · Meiosis - Cell Division Meiosis: the process of cell division which involves a reduction of the chromosome number to one half the normal

Worksheet: Meiosis and Mendel's Law of Segregation - …star.mit.edu/media/uploads/stargenetics_peas_exercises/meiosis... · Meiosis and Mendel’s Law of Segregation ... Draw Chromosome

1. Meiosis and chromosome number 2.Steps in meiosis 3.Source of genetic variation a.Independent alignment of homologues b. Recombination

Meiosis Fertilization SHO - Farkas...Meiosis I the as chromosome can be lined up on the same side as either the l chromosome or the L chromosome. This is called independent assortment

Reproduction and Meiosis - BIOLOGYbeaconbiology.weebly.com/uploads/8/...and-meiosis-.pdf · meiosis, homologous chromosomes separate, and haploid cells form that have only one chromosome

Chapter 13 Sexual Life Cycles and Meiosis...Concept 13.3: Meiosis reduces the number of chromosome sets from diploid to haploid Like mitosis, meiosis is preceded by the replication

1. Meiosis and chromosome number Life cycle and ploidy levels Steps in meiosis

Abnormal meiosis. Nondisjunction happens when two homologus chromosomes don’t separate during meiosis One pole ends up with an extra chromosome and one

Meiosis Notes · Mitosis does not normally change the chromosome number of the original cell. This is not the case for meiosis, which reduces the chromosome number by half. Mitosis

Meiosis – A Source of Distinction€¦ · §1) Meiosis takes a cell with two copies of every chromosome (diploid) and makes cells with a single copy of every chromosome (haploid)

Abnormal meiosis Sometimes mistakes occur during meiosis –Segments of chromosome (block of genes) can be lost or added – chromosome mutation / aberration

MEIOSIS CELL DIVISION - Weebly · Meiosis reduces chromosome number and creates genetic diversity. Cells go through two rounds of division in meiosis. 1. Meiosis I (4 phases) 2. Meiosis

Chromosome Structure, Meiosis, and Genetics

Meiosis Production of Chromosome Hybrids & Gameteselysciencecenter.com/.../Meiosis_2015-16.231201822.pdf · Meiosis, discovered in 1883, was first observed through the fertilized

Cell Division: Meiosis - WordPress.com...2019/09/01  · and Meiosis II 46 23 23 23 23 23 23 meiosis 1 meiosis 2 Daughter Cells During meiosis, chromosome number in each cell is reduced

BIOL 221 Ch 13 Meiosis - philipdarrenjones.comphilipdarrenjones.com/web_documents/biol_221_ch_13_meiosis.pdf · 1 BIOL 221 Ch 13 Meiosis Chromosome number •Human cells ‐ Diploid