'Extra chromosomes' presentation slideshows

CH. 6: Patterns of Inheritance

CH. 6: Patterns of Inheritance. Major Concepts:. Genes are discrete sequences of DNA on chromosomes; chromosomes consist of DNA and associated proteins. Genes are the units of inherited information. Genes code for several RNA types; mRNA is the template for proteins.

1.23k views • 123 slides

Common Chromosomal Abnormalities

Common Chromosomal Abnormalities. Anthony Liu, M.D. Overview- DNA. DNA By the Numbers: 3,000,000,000: Number of base pairs in the human genome 90%: Have no identifiable function 50,000: Total number of encoded genes 16,000: Base pairs in mitochondrial DNA. Overview.

929 views • 60 slides

Mutations and Genetic Change

Mutations and Genetic Change. Section 14.1 Page. 319-324. What are mutations ?. Mutations are changes in the structure or amount of genetic material of an organism. Organisms whose DNA or chromosomes have mutations are called mutants. What causes mutations?.

550 views • 19 slides

Chapter 6

Chromosomes and cell reproduction. Chapter 6 . Why does a cell reproduce?. Growth Repair Gamete production. What is the one thing each new cell must contain?. DNA. Why?. Prokaryotes . Reproduce by binary fission asexual produces an exact copy (clone)

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Human Genetic Disorders 7 th Grade Science Mr. Bombick

Human Genetic Disorders 7 th Grade Science Mr. Bombick. Major Categories of Genetic Disorders. Point Mutations Gene(s) Deletion(s) Chromosomal Aberrations Polygenic. Point Mutations. Point mutations are changes within a particular gene

373 views • 10 slides

Human chromosomes

Human chromosomes. There are 46 chromosomes (23 homologous pairs) in each somatic cell 22 pairs of autosomes 1 pair of sex chromosomes XX = Female, XY = Male Karyotype - chromosomes are arranged according to shape and size. Nondisjunction and chromosomal disorders.

536 views • 10 slides

202 views • 9 slides

Non- disjuction errors in Autosomal chromosomes

213 views • 7 slides

Human Chromosomal Disorders

Human Chromosomal Disorders. Resulting from Variations of Chromosomal Number. Normal Human Karyotypes (metaphase chromosomes from a diploid cell). * Note that there are a total of 46 chromosomes for each individual and that the female has two X chromosomes in position 23

191 views • 7 slides