'Chromosomes' presentation slideshows

Chapter 6 Chromatin and chromosomes By Benjamin Lewin 6.2 Chromatin is divided into euchromatin and heterochromatin Individual chromosomes can be seen only during mitosis. During interphase, the general mass of chromatin is in the form of euchromatin.

The Cell Cycle and How Cells Divide. Phases of the Cell Cycle. The cell cycle consists of Interphase – normal cell activity The mitotic phase – cell divsion. INTERPHASE. (DNA synthesis). Growth G 1. Growth G 2. Cell Divsion. 100 µm. 200 µm. 20 µm.

Meiosis: going from diploid to haploid. Making Gametes : Egg and Sperm. The cell cycle remains the same except…. G1. Division: meiosis & cytokinesis. S. G2. Meiosis Overview.

Genetics. The Language of Life. Image from: http://commons.wikimedia.org/wiki/File:Hazel_eye.jpg. Define Genetics!. Genetics, The Unit. How these genes are passed from generation to generation. ( inherited ) How genes affect the way we look and Function.

Analyze the karyotype:. There are 3 number 21 chromosomes. This is called Trisomy 21. (tri:3, somy:body). Down Syndrome. Chapter 13 - Meiosis and Sexual Life Cycles. AIM: What happens when meiosis goes wrong?. Chapter 13 - Meiosis and Sexual Life Cycles.

Cell Division. Chromosomes. Are made of DNA Each chromosome consists of sister chromatids attached at a centromere. Cell Cycle. During the cell cycle, a cell grows, prepares for division, and divides to form 2 daughter cells, each with each of which then begins the cycle again.

CHAPTER 11. SOCIOEMOTIONAL DEVELOPMENT IN EARLY CHILDHOOD. EMOTIONAL AND PERSONALITY DEVELOPMENT. The Self

Cytogenetics in Humans. Marie Černá. Chromosome. Chromosome. On each chromosome is apparent the centromere as a primary constriction dividing the chromosome into two arms – a short arm p (for petit) a long arm q Chromosomes are classified by their length

8-1 Chromosomes. The DNA in a human cell is estimated to consist of 6 billion pairs of nucleotides!. Chromosomes are rod-shaped structures made of DNA and proteins.

Examining Mitosis and Meiosis Lesson C3-3. Reminder: student learning activities are at the end of this power point.

Chapter 8.3. Meiosis. Types of Reproduction. Asexual reproduction Produce offspring with only ONE parent “babies” are identical to parent Sexual reproduction Produce offspring by meiosis and the joining of the sperm and egg “babies” are NOT identical to parents. Meiosis

Quick Review -. Meiosis - division of cells which results in the production of gametes Gametes - also known as sex cells, germ cells, or spores; cells of sexual reproduction, which contain only half the chromosomes of a normal cell highered.mcgraw-hill.com/sites/0072549238/

Section 002, 8:30 Mean = 75.4. Section 001, 9:30 Mean = 74.7. Chapter 12: The Cell Nucleus and Control of Gene Expression. The Cell Nucleus…. Every somatic cell contains the same genetic information regardless of whether it is expressed the same way.

Chapter 3. A. Gene function Genes and protein synthesis and mutation (diagram) B. Genetic diseases Identification of genes Pedigrees/DNA markers Diseases (PKU, Albinism, CF, Huntington Disease, DMD) C. Use/Misuse of genetic information Genetic tests Prenatal testing

Sec 11.2, Complex Patterns of Inheritance. Main idea: Complex inheritance of traits does not follow inheritance patterns described by Mendel. Incomplete Dominance. With in complete dominance there is a phenotype in between the homozygous phenotypes.

DNA: Structure and History. Biology. DNA is a chemical !!. Strawberries. Human. Functions of DNA:. - stores all your body’s information Passes information from parents to offspring (heredity or hereditable characteristics). DNA is made of smaller parts called: Nucleotides.

Meiosis to Mendel. Chapter 9 Read first few sections. Reproduction. Asexual reproduction – mitosis Produces clones – genetically identical individuals What would happen if the environment changed? Genetic variability helps the population as a whole survive changes. WHY SEX ?.

Chromosomes. Dr. A. A. Abougabal. Chromosomes.

Abnormal Meiosis. What each of the human chromosomes look like. Karyotype : A photomicrograph of chromosomes arranged according to a standard classification. In other words…. Chromosomes are digitally arranged so that they are matched with their homologue or “partner” chromosome.

Mitosis in Watermelons. Watermelons grow from small to large through the process of Mitosis. Interphase. Each bean represents 1 chromosome. Watermelons have 22 chromosomes. Chromosomes begin to duplicate. Nucleus. Prophase. Spindle fibers start to form. Each chromosome now has a duplicate