Genetics: Study Of Biological Information Essay

Length: 3 pages Sources: 1+ Subject: Genetics Type: Essay Paper: #42968352 Related Topics: Genetic Code, Dna, Biochemistry, Study Guide
Excerpt from Essay :

The information is then transcribed into the traits and phenotypes of the offspring depending on the dominance and recessive alleles within the gene (Berg, Tymoczko, & Stryer, n.d). The egg is fertilized by the sperm from the mother and their nuclei fuses together to form a zygote. The zygote contains 23 chromosomes from the mother and 23 from the father. From this combination of genes and the environmental conditions of the uterus, the traits and phenotypes of the individual are determined.

The principle of segregation for all organisms is as follows:

1. Hereditary traits are determined by specific genes. In the DNA molecule, genes are coded to specify a certain, single characteristic; this includes height, weight, eye color, etc. Any variations of the gene that correlates to the same trait are called alleles.

2. Individuals carry two genes for each trait, one from the mother's egg and one from the father's sperm. One of the genes will be dominant over the other. The dominant allele will mask the other, called the recessive allele. When the father gives a tall allele in regards to the height gene, and the mother gives a short allele, the offspring will be tall. This is because tall is dominant and short is recessive (Gene School, 2010).

Conclusions

In this course, it has been defined as "the study of how biological information is stored, utilized, and passed on from one

...

The genes inside of the cell are the information storage units and determine the characteristics of the individuals or species.

The DNA, found in the nucleus of the cell, stores the genetic material and the RNA is the transfer, messenger, and translator of the codes taken from the DNA.

The genetic materials, traits of the mother and father, are transferred to their offspring through the sex chromosome of the parents. The traits and phenotypes are dependent on the dominant or recessive alleles from the parents.

Bibliography

Alberts, Johnson, Lewis, Raff, Roberts, & Walter. n.d. "Molecular Biology of the Cell." 4th edition. Retrieved on May 7, 2010 from http://www.ncbi.nlm.nih.gov/bookshelf/br.fcgi?book=mboc4&part=A592

Berg, J.; Tymoczko, J.; & Stryer, L.; n.d. "DNA, RNA, and the Flow of Genetic Information." Biochemistry, 5th edition. Retrieved on May 7, 2010 from http://www.ncbi.nlm.nih.gov/bookshelf/br.fcgi?book=stryer&part=A621

"Gene School" 2010. Retrieved on May 7, 2010 from http://library.thinkquest.org/19037/heredity.html

"Genetics: Elementary Human Genetics." 2010. Retrieved on May 7, 2010 from http://www.healthknowledge.org.uk/parta/paper1knowledge/2_diseasecausationdiagnostic/2d_Genetics/2d1.asp

Merriam-Webster Online Dictionary. Retrieved on May 7, 2010 from http://www.merriam-webster.com/dictionary/genetics

Sources Used in Documents:

Bibliography

Alberts, Johnson, Lewis, Raff, Roberts, & Walter. n.d. "Molecular Biology of the Cell." 4th edition. Retrieved on May 7, 2010 from http://www.ncbi.nlm.nih.gov/bookshelf/br.fcgi?book=mboc4&part=A592

Berg, J.; Tymoczko, J.; & Stryer, L.; n.d. "DNA, RNA, and the Flow of Genetic Information." Biochemistry, 5th edition. Retrieved on May 7, 2010 from http://www.ncbi.nlm.nih.gov/bookshelf/br.fcgi?book=stryer&part=A621

"Gene School" 2010. Retrieved on May 7, 2010 from http://library.thinkquest.org/19037/heredity.html

"Genetics: Elementary Human Genetics." 2010. Retrieved on May 7, 2010 from http://www.healthknowledge.org.uk/parta/paper1knowledge/2_diseasecausationdiagnostic/2d_Genetics/2d1.asp
Merriam-Webster Online Dictionary. Retrieved on May 7, 2010 from http://www.merriam-webster.com/dictionary/genetics


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