Wednesday, May 19, 2010

GENE CHROMOSOMES

CHROMOSOMES
is the yarn structure in the cell nucleus which is responsible in terms of offspring (heredity). Chromosomes are typical for living things.

GEN is the "substance of heredity," located in the chromosome.

Genes are among others:
- As a separate matter contained in the chromosome.
- Contains information on genetics.
- Able to replicate themselves in the events of cell division.

A pair of chromosomes is "homologous" to each other, meaning that the locus containing the corresponding genes, called ALELA.

Locus is the location for the gene in the chromosome.
Allele DOUBLE (MULTIPLE ALLELES) is that there is more than one allele at the same loci.

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Known two kinds of chromosomes, namely:

1. Body chromosomes (autosomes).
2. Sex chromosomes / chromosomal sex (Gonosom).

Thomas Hunt Morgan
is a United States geneticist who discovered that the descendants of factors (genes) are stored in a unique locus in the chromosome.

Attempt to have this done on fruit fly (Drosophila melanogaster) with the following reasons:

- Quickly multiply,
- Easily obtained and maintained,
- Quickly become adults (age 10-14 days was de ~ adult),
- Flies many females lay eggs,
- Only has four pairs of chromosomes, making it easy examined.

Sunday, May 16, 2010

Smallpox disease (Herpes)

Smallpox disease or so-called 'Herpes' by the medical community is a disease characterized by inflammation of the skin forming bubbles of water in groups. Chickenpox or Herpes Disease There are two kinds of groups, Genetalis Herpes and Shingles.

Genetalis herpes is an infection or inflammation (bubble blister) on the skin especially in genital (vagina, penis, including the door of the rectum / anus and the buttocks and groin / groin) is caused by herpes simplex virus (VHS), while herpes zoster or by any other name ' shingles' is a skin infection caused by the varicella-zoster virus that causes bubbles in the liquid almost the entire body.

Herpes zoster is also said the infections to the skin which is a continuation of the chickenpox (chicken pox) because the viruses that attack is the same, only there is a difference with the chicken pox. Shingles is characterized by a larger bubble smallpox and clustered in certain parts of the body, can in the back, forehead or breast.

# How to Spread Disease Chickenpox (Herpes)

In general, all types of herpes can be transmitted through direct contact. However, in herpes zoster, which occurs in diseases such as smallpox (chickenpox), the process can spread through sneezing, coughing, contaminated clothing and touch up bubbles / blisters that burst. In genital herpes disease (genetalia), transmission occurs through sexual behavior. So the disease is sometimes suffered by Herpes genetalis mouth due to oral sex section. Symptoms will occur in the period 7-21 days after the person is in contact (infected), varicella-zoster virus.

Someone who has had chicken pox and later healed, the virus actually is not 100% lost from the body, but rather hiding in the dorsal ganglion cells in the sensory nervous system of patients. When the immune system (immune) to weaken, the virus will attack again in the form of Herpes Zoster which caused symptoms similar to chickenpox disease (chickenpox). For someone who has never had chicken pox, when the varicella-zoster virus infection is not directly experienced herpes zoster but had chickenpox first.

# Signs and Symptoms Diseases Chickenpox (Herpes)

Signs and symptoms arising from the herpes virus attacks in general are fever, chills, shortness of breath, pain in joints or sore in one part of the collapse, the appearance of reddish spots on the skin that eventually form a bubble liquid. Another complaint is sometimes felt by people who are sick stomach.

# Handling and Treatment of Diseases Chickenpox (Herpes)

In patients with smallpox are the most important thing is to keep the liquid bubbles do not break so as not to leave scars and a way in to other germs (secondary infection), among others, the granting of talcum powder to help lubricate the skin. When patients can not stand the cold condition is recommended not to bathe, because it can lead to shock.

Drugs given to patients with smallpox is intended to reduce the symptoms of existing complaints such as pain and fever, for example, given paracetamol. Giving Acyclovir tablets (Desciclovir, famciclovir, valacyclovir, and penciclovir) as antiviral aims to reduce fever, pain, complications and protect a person from the inability of the immune system against the herpes virus. Acyclovir should drug administration when the pain or a burning sensation on your skin burned, no need to wait for the emergence of bubbles of fluid (blisters).

On a serious condition in which the immune system of someone very weak, patients with smallpox disease (herpes) should get treatment therapy intravenous (IV) Acyclovir. As prevention efforts should someone get a varicella-zoster vaccine immunization. In healthy children aged 1-12 years given once. Immunises can be given once again at puberty to establish immunity to 60% - 80%. After that, in order to refine it, give it one more time when adult immunization. This acquired immunity can last up to 10 years.