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Genetic Foundations

Essay by   •  October 26, 2011  •  Essay  •  406 Words (2 Pages)  •  1,540 Views

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Genetic Foundations

-DNA is to small to see but under a microscope it looks like a twisted ladder

-Every living thing has DNA

- A gene is a segment of DNA along the length of a chromosome

-Genes are found on chromosomes and are made of DNA

-Different genes determine the different characteristics or traits of an organism

The Sex Cells

Cell Division

A unique feature of DNA can duplicate itself through a process known as Mitosis

Takes place in regular body cell

Keeps cells living and growing

Gametes of an organism are formed through a cell division known as Meiosis

When sperm and ovum unite at conception the resulting cell is called a zygote

People have a chromosome count of 46

The egg has 23 chromosomes and the sperm has 23 chromosomes

During meiosis gametes (sex cells) undergo a double division

Genetic Foundations

-DNA is to small to see but under a microscope it looks like a twisted ladder

-Every living thing has DNA

- A gene is a segment of DNA along the length of a chromosome

-Genes are found on chromosomes and are made of DNA

-Different genes determine the different characteristics or traits of an organism

The Sex Cells

Cell Division

A unique feature of DNA can duplicate itself through a process known as Mitosis

Takes place in regular body cell

Keeps cells living and growing

Gametes of an organism are formed through a cell division known as Meiosis

When sperm and ovum unite at conception the resulting cell is called a zygote

People have a chromosome count of 46

The egg has 23 chromosomes and the sperm has 23 chromosomes

During meiosis gametes (sex cells) undergo a double division

The 23rd pair of chromosomes consist of sex cell

-Females XX

-Males

...

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