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Chromosome 1 Genes

Chromosome 1 is the largest of the 23 chromosomes, containing a greater number of nucleotides at its 85 loci than all other chromosomes. There are an estimated 4220 genes on chromosome 1, as discovered during the Human Genome Project around twenty years ago.

9 Feb 2010

What is Chromosome 1?

Chromosomes are vital components of eukaryotic or prokaryotic cells, in which an entire genome is stored.

9 Feb 2010

Human Chromosomes

The human chromosome is the basic building block of life and is one of the most important components of the cell to be transmitted from generation to generation. It is essentially an organized structure of DNA that exists within the nucleus of all human cells and comprises a single chain of DNA that is coiled and super coiled to form dense thread like pieces.

8 Feb 2010

Chromosomal Abnormalities

Chromosomal abnormalities, alterations and aberrations are at the root of many inherited diseases and traits. Chromosomal abnormalities often give rise to birth defects and congenital conditions that may develop during an individual's lifetime. Examining the karyotype of chromosomes (karyotyping) in a sample of cells can allow detection of a chromosomal abnormality and counselling can then be offered to parents or families whose offspring are at risk of growing up with a genetic disorder.

8 Feb 2010

Chromosome Karyotype

The term "karyotype" refers to the chromosomal pattern inside the nucleus of an animal cell (eukaryote), as well as to describes the set of chromosomes in a species or in an individual organism. The study of karyotypes in eukaryotic cells is a branch of science termed cytogenetics, from "cyto" meaning cell and "genetics" meaning the cell's chromosomal make up.

8 Feb 2010

Chromosomes in Prokaryotes

Prokaryotes are the group of organisms including bacteria and archaea that do not have a membrane-bound nucleus and instead have a circular, double-stranded molecule of DNA called a nucleoid, that is not contained in a nuclear envelope.

8 Feb 2010

Chromosomes in Eukaryotes

Cells with nuclei are known as eukaryotic cells, the cells that make up animals, plants and yeast. The nucleus is the organelle that contains the majority of the cell's genetic material, where it is organized into dense linear complexes called chromosomes. The number of these chromosomes varies from species to species. Each chromosome has a central, bulb-like thickening called the centromere which separates the chromosome into two arms: a long arm (q) and a short arm (p). Under normal conditions these arms are not clearly visible.

8 Feb 2010

Chromosome History

The scientific field of genetics first began with the research conducted by Gregor Mendel, who is known of as the "Father of Genetics". Mendel performed extensive experiments with pea plants to demonstrate that characteristic traits inherited by the plants followed certain patterns, patterns which are today known of as the laws of Mendelian inheritance. Mendel's research involved thousands of pea plants which he studied over an 8 year period in the mid 19th century.

8 Feb 2010

What is a Chromosome?

Chromosomes are the basic building blocks of life where the entire genome of an organism is essentially organized and stored in the form of DNA (deoxyribonucleic acid) which is present inside every cell making up that organism. A chromosome is a single chain of DNA that is coiled and super coiled to form dense thread-like pieces. The term chromosome is derived from the Greek words "chroma" or color and "some" or body and is so named because chromosomes have the ability to be stained with dyes.

8 Feb 2010

Chlamydia Treatment

Chlamydia infection is one of the most common sexually transmitted infections. It is spread through unprotected vaginal, anal or oral sex with an infected individual. The infection may also be passed from mother to baby during childbirth.

8 Feb 2010

Chlamydia Diagnosis

Chlamydia is one of the most common sexually transmitted infections and can be contracted through unprotected vaginal, oral or anal sexual intercourse with an infected person.

8 Feb 2010

Chlamydia Infection Pathophysiology

Chlamydia infection is caused by the bacterium Chlamydia trachomatis and is one of the most common sexually transmitted diseases in the world.

8 Feb 2010

Chlamydia Screening

Chlamydia is one of the most common sexually transmitted infections. The infection is transmitted via unprotected vaginal, oral or anal sex with an infected person. It can also be transmitted from an infected mother to a baby during childbirth.

8 Feb 2010

Chlamydia Symptoms

Chlamydia is a sexually transmitted bacterial infection that presents with few or no symptoms in the majority of patients. If symptoms do appear, they usually present around one to three weeks after having unprotected vaginal, oral or anal sex with an infected person. However, symptoms may also appear months after exposure.

8 Feb 2010

What is Chlamydia?

Chlamydia infection is a common sexually transmitted disease caused by the bacteria Chlamydia trachomatis, a strain of bacteria from the Chlamydiaceae family that usually affects the urogenital tract.

8 Feb 2010

History of Sexually Transmitted Disease

Sexually transmitted diseases (STDs) have been known to mankind for centuries. Before the advent of modern medicine, people's lack of awareness and understanding of STDs contributed to the widespread transmission of the infections while few or no treatments were available to treat the conditions.

8 Feb 2010

STD Diagnosis

Diagnosing sexually transmitted diseases (STDs) is of vital importance, not only so that treatment can be started early in order to prevent long-term complications but also to prevent transmission and protect communities.

8 Feb 2010

STD Prevention and Treatment

Sexually transmitted diseases or STDs are a public health problem caused by the transmission of bacteria, viruses and other parasites. While some of the diseases are treatable using antibiotics, some such as HIV infection are not curable and can be fatal. Therefore, prevention of STD infection is the most important factor in managing these infections.

8 Feb 2010

STD Pathophysiology

Sexually transmitted diseases (STDs) are transmitted via the mucous membranes of the vagina, penis, urethra or rectum, during sexual contact with an infected individual. Transmission can also occur via membranes of the throat, respiratory tract, mouth and eyes.

8 Feb 2010