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DNA – Chromosomes - Genes

DNA – Chromosomes - Genes. DNA. DNA :  the chemical inside the nucleus of a cell that carries the genetic instructions for making living organisms. The material inside the nucleus of cells that carries genetic information. The scientific name for DNA is deoxyribonucleic acid.

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DNA – Chromosomes - Genes

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  1. DNA – Chromosomes - Genes

  2. DNA • DNA:  the chemical inside the nucleus of a cell that carries the genetic instructions for making living organisms. • The material inside the nucleus of cells that carries genetic information. • The scientific name for DNA is deoxyribonucleic acid.

  3. http://www.ncbi.nlm.nih.gov/

  4. Chromosomes • A chromosome is one of the threadlike "packages" of genes and other DNA in the nucleus of a cell. • Different kinds of organisms have different numbers of chromosomes. • Humans have 23 pairs of chromosomes, 46 in all: 44 autosomes and two sex chromosomes. • Each parent contributes one chromosome to each pair, so children get half of their chromosomes from their mothers and half from their fathers.

  5. http://www.ncbi.nlm.nih.gov

  6. Gene • A gene is the functional and physical unit of heredity passed from parent to offspring. • Genes are pieces of DNA, and most genes contain the information for making a specific protein.

  7. http://www.ncbi.nlm.nih.gov

  8. Genome • A genome is all the DNA contained in an organism or a cell, which includes the chromosomes plus the DNA in mitochondria (and DNA in the chloroplasts of plant cells).

  9. http://www.ncbi.nlm.nih.gov

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