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Role in Genetics

In: Philosophy and Psychology

Submitted By stella2125
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Role of genetics in development

Will I have a blue or brown eyed child? Will he be tall or short? Will she have my chin or nose? What do all these questions have in common? They are all questions where genetics play a role. Humans have 23 pairs of chromosomes; they are small thread-like structures in the nucleus of the cells. Half, or 23, of the 46 chromosomes come from the mother and the other half their father (Mandal, n.d.). From eye color to hair color genetics plays a role in a person’s biological makeup. But studies have also show that genetics play a role in illnesses and disease that can affect both physical and mental health. Genetics play a role in determining the physical makeup of a child, the psychological or mental makeup of a child and also certain abnormalities such as Tay-Sachs disease. The role of genetics can predetermine many different characteristics of a human being.

Genetics play a role in development of physical traits. Genes are passed down from the mother and the father but before we can get there, let’s start at the beginning. A sperm and an egg each have one copy of the gene to make up an individual. When the sperm fertilizes the egg, two copies of each gene are present and the new life begins. Each egg and sperm cells contain 23 chromosomes. When they are joined together a fertilized egg will be formed with 46 chromosomes but sometime the egg or sperm will not divide correctly. Sometimes when the egg and sperm unite they will have too many or two few chromosomes. When the cell has the wrong number of chromosomes this can result in a chromosomal abnormality (Birth Defects, n.d.).
Children can inherit physical traits from either parent. Genes are segments of DNA that are carried on the chromosomes and determine specific characteristics such as height, eye or hair color. There are different types of genes, recessive...

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