Chapter 14Chapter 14

The Human Genome

By Heidi Erdenetsogt

The Human Genome

By Heidi Erdenetsogt

The human body is made up of chromosomes which all contain at least

one X chromosome.

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• There are 23 X chromosomes and 23 Y chromosomes in males.

• In females, there are 46 X chromosomes.

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Male Chromosomes

• In males, since there is only 1 X chromosome the X-linked alleles are expressed in males although

recessive.

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Nondisjunction

• When gametes are caused to have an abnormal chromosomes count, causing

a chromosomes number disorder.

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Human Genome Project

• The Human Genome Project is the attempt to sequence all human DNA.

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Gene Therapy

• Gene therapy is the process in which a missing or not working gene is

replaced with a good gene.

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DNA Fingerprinting

• DNA fingerprinting is a method which can be used to determine the identification of a specific individual.

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Karyotype• It is the picture formed after

cutting and arranging chromosomes into a photograph which is then called a karyotype.

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Pedigree• A pedigree is a diagram that is

used to show the relationships within a family.

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Genetic Disorders• A small change in DNA of one cell can effect protein structures thus causing a genetic disorder such as

cystic fibrosis or sickle cell disease.

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THE END! (;

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