1. NİŞANTAŞI ÜNİVERSİTESİ
GENERAL BIOLOGY
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2. The Building Blocks of Heredity and Development
GENES:
The Building Blocks of Heredity and Development
Genes are parts of DNA molecules, which are found in chromosomes in the nuclei of cells.
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Chromosome: threadlike structure made largely of DNA molecules
DNA: a spiraling, complex molecule containing genes
DNA
(Deoxyribonucleic Acid)
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3. Chromosomes and Inheritance
The human genome includes 46 chromosomes in 23 sets matched sets; each chromosome has the same gene locations.
This includes the X and Y chromosomes, not a matched set in males, who are missing some genes on the Y.
A biological parent donates half his/her set of chromosomes to his/her offspring.
We received half a set of chromosomes from each biological parent.
The genome: an organism’s entire collection of genes
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4. NİŞANTAŞI ÜNİVERSİTESİ ©
How Genes Work
Genes are not blueprints; they are molecules that have the ability to direct the assembly of proteins that build the body.
This genetic protein assembly can be turned on and off by the environment, gene expression, or by other genes.
Any trait we see is a result of the complex interactions of many genes and countless other molecules.
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Note: there is rarely one single gene for one trait, and tiny differences in genes can influence big differences in appearance and behavior.
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5. NİŞANTAŞI ÜNİVERSİTESİ ©
kaynaklar
James W. KALAT (2015). Biological Psychology (Vol. 12). Cengage Learning
Kenneth R. Miller, Joseph S. Levine (2001) Prentice Hall:Biology
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