Genotype

Preimplantation genetic testing is a genetic technique in which cells are removed from embryos to examine chromosomal abnormalities in vitro fertilization before a woman gives birth (King). Embryos made through in vitro fertilization would face genetic modification to avoid passing the defects onto future generations. After modification, only embryos free of abnormalities would be placed into the mother’s womb. This technique is targeted for parents who have a high risk of passing a fatal…

of treatment of alcoholics to make alcohol taste unpleasant, seems to be the most promising. But no valid evidence of disulfiram’s relation to cocaine. If this would work researchers are looking into identifying patient’s dopamine beta hydroxylase genotype to determine the effectiveness of an individual’s rehabilitation from cocaine. Along with these project a cocaine vaccine to reduce the risk of relapse, it would reproduce cocaine antibodies that would attach to the cocaine preventing it from…

Zika virus (ZIKV) is a flavivirus transmitted through the bites of infected Aedes species of mosquitoes. In 1947, ZIKV virus was first recognized in Uganda in monkeys through a system that observed yellow fever. Later in 1952, the virus was acknowledged in humans in Uganda and the United Republic of Tanzania. Since then, there has been reports of outbreaks of ZIKV in Africa, America, Asia and the South Pacific. In 2007, the first large outbreak of ZIKV was reported from Yap Island. ZIKV is…

create individual personalities, behaviors and psychopathologies supposedly unique to every human being. The argument of genetic makeup versus environmental influences, however, has researchers working to determine what really shapes us. Some say genotypes control how people think, feel and behave. Others believe it is the environment alone that is responsible for molding humans into who they are. There is much unknown in this field, but the perusal and review of twin, adoption,and family…

It has been demonstrated that MUC1 (membrane bound mucin) often located on the outer portions of cells, serves as a preventive agent against Helicobacter pylori. MUC1 reduces gastric inflammation in H. pylori Infected tissue by forming a complex with IkB kinase gamma (IKKγ) in this way hindering the contact between IKKγ and IKKβ causing the prevention of nuclear factor kappa B (NF-kB) transportation to the nucleus, in this manner preventing the transcription of genes that can cause inflammation…

a. In his paper, Faulty Circuits, Insel suggested that biological malfunctions underlie psychological disorder. He used some modern biology and neuroscience findings to support his argument. Here are three pieces of evidence he used. He first presented a study performed at the National Institute of Mental Health on a serotonin transporter gene of participants with and without depression. It was found that the participants with a short variation of the gene showed smaller brain tissue volume in…

In modern molecular biology and genetics, the genome is the genetic material of an organism. It consists of DNA (or RNA in RNA viruses). The genome includes both the genes and the non-coding sequences of the DNA/RNA. Understanding Human Genetic Variation Genetics is the scientific study of inherited variation. Human genetics, then, is the scientific study of inherited human variation. We study genetic material due to following reasons; 1. One reason is simply an interest in better understanding…

Write neatly and legibly. Copyright reserved Please turn over Life Sciences/P1 3 NSC DBE/Feb. – Mar. 2011 SECTION A QUESTION 1 1.1 Various options are provided as possible answers to the following questions. Choose the correct answer and write only the letter (A – D) next to the question number (1.1.1 – 1.1.6) in the ANSWER BOOK, for example 1.1.7 D. 1.1.1 The process in which male gametes are formed in humans is called … A B C D 1.1.2 When the first…

When an organism produces more healthy offspring than another of the same species, the gene from the more successful organism will become the dominant gene with the recessive genotype becoming extinct from the population. Species adapt to their environment over time, creating new species along the way a great way to see this clearly is Darwin’s theory on finches. Where Darwin discovered that on a group islands called the Galapagos…

can taste their offspring cannot taste PTC as well. As a result, the offspring can also be taste blind to PTC. 6. When doing a testcross the outcomes are the parents can taste the TTtt Tttt and the ratio zero: four: zero and zero: two :two. The genotype that one parent can taste ptc and the can’t is TTtt / Tttt and can’t taste is tt tt. The outcome zero: four: zero characterizes when a homozygous recessive and homozygous dominant when they are pair. As a result, the offspring will exclusively…