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).
In this course, it has been defined as "the study of how biological information is stored, utilized, and passed on from one generation to the next." The cell plays the role of storage, retrieval, and...
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.
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
Genetics and Development: As a discipline of biology, genetics is basically considered as the science of genes, inheritance, and differences in living organisms. Since genes are common characteristics in living organisms, genetics is used in the study of all living systems including plants, humans, domestic animals, bacteria, and viruses. Generally, this biological discipline focuses on the molecular structure and operation of genes whose behaviors are in the context of organisms or
Coronary Artery Disease (CAD) is linked to genetic inheritance, and more than 250 genes have been explored as having potential links with CAD. Although these genes are thought not to directly pass on CAD, research has seen that some mutations within these particular genes actually increase the risk of CAD within an individual who as immediate family members who have already suffered from the affects of CAD. Further research
Nanotechnology attempted to show the potential of this new technology and included the wide range of fields that are connected to the concept of the nanometer scale. These include machining, imaging, metrology or measurement, micromachines, instrumentation and machine tools, scanning probe microscopy, fabrication of components, nanoelectronics, molecular engineering, among others. (Journal Review: Nanotechnology) Another important step in the development of this technology in both a practical and theoretical sense was
cheap genomic sequencing has widespread and unforeseen cultural, political, and societal implications that have only just begun to reverberate through the human population at large. Genomic sequencing not only reveals some of the causes and connections behind certain diseases or disorders, but also puts the lie to certain forms of bigotry which assumed that dramatic phenotypic differences represented a similarly dramatic genetic or biological difference (put another way, genome
The following images show certain disorders that result due to mutation. Children born from the same family members' shows higher similarity index regarding the genetic disorder number inclusive of the Indian community (Cummings, 2010, pg 333). Curbing gene disorders Stoppage of varying types of disorders is possible through learning in consideration of human development the number of genes contained in a single genome, their respective location and the establishment of functions
Behavioral Psychology The main link between the brain and the mind is through the nervous system. It processes information from various regions in the body and transmits it via electrical and chemical signals. The study of the relationship that the brain has on the mind, consciousness and behavior is called behavioral psychology. Decades ago, scientists would use electrodes to stimulate various regions of the brain to understand how it affected the