What does a chromosome look like?
They look the same as animal chromosomes. The individual chromatids are worm-like in appearance and are normally joined in pairs at the centre (the centromere); simplistically they look like two parallel lines joined by a dot in the centre. The number of chromosomes in a nucleus varies from plant species to plant species.
What is the difference between a chromosome and a DNA molecule?
The difference between a chromosome and a DNA molecule is that a chromosome is a single DNA molecule associated with proteins and a DNA molecule is a long thin molecule that stores genetic information.
How do you find out if your son has half an chromosome extra?
To determine if a child has an extra half of a chromosome, genetic testing such as a chromosomal microarray analysis or a karyotype test would be needed. These tests can identify any abnormalities in the number or structure of chromosomes in an individual's cells. It is important to consult with a healthcare professional or a genetic counselor for proper diagnosis and guidance.
What happens to the number of chromosomes in mitosis?
There is no change in chromosome number. Just in the amount of chromatids. Because during synthesis each chromosome doubles and becomes sister chromatids.
How many chromosomes are present in goldfish?
yes there are because in a goldfish body cell there are 94 chromosomes. in order to find the amount of chromosomes in a sex cell of a goldfish you need to divide the body cells by two. this is so because in order to make another goldfish half need to come from daddy and half need to come from mommy this is why you divide by half. therefore there are 47 chromosomes in a goldfish's sex cell.
How many chromosomes are in a daughter cell?
it depends...
If the cell is somatic (non-sex cell) the daughter cells each have 46 chromosomes (in humans, this is.) The daughter cells are diploids.
If the cell is a germ cell (sex cell), the daughter cells each have 23 chromosomes (in humans). The daughter cells are haploids.
Why do chromosomes come in pairs?
Chromosomes come in pairs as a result of sexual reproduction. In humans, one set of 23 chromosomes comes from your mother and one set of 23 comes from your father. When the sperm fertilizes the egg, the two sets of chromosomes come together to make the zygote, which has two sets of 23 chromosomes, for a total of 46. All the body cells of a human have the same number of chromosomes, which is 46.
What Chromosomes are affected in Glaucoma?
Studies have shown that certain genetic variants located on chromosomes 2, 8, and 15 may be associated with an increased risk of developing glaucoma. However, glaucoma is a complex disease with multiple genetic and environmental factors influencing its development.
What are the female chromosomes?
The X chromosome is the female chromosome. In humans, the 23rd pair of chromosomes are the sex chromosomes. If both chromosomes are X, then the person is female, generally speaking. If there is a Y chromosome and an X, then the person is male.
In which phase do chromosomes become visible?
The DNA of a cell condenses to form chromosomes during cell division or mitotis, called the M phase of the cell cycle. Specifically, chromosomes acquire their characteristic X shape in the metaphase stage of mitotis. Each chromosome consists of two sister chromatids joined at the centromere.
Chromosomes contain DNA that carries genetic information essential for traits and functions of an organism. During cell division, chromosomes ensure that genetic material is correctly copied and distributed to offspring cells. Chromosomes play a crucial role in determining characteristics, such as eye color, height, and susceptibility to diseases.
What does the 24 in chromosome 8q24 mean?
The 24 in chromosome 8q24 denotes the specific location of a gene on chromosome 8. Chromosomes are numbered from 1 to 22 based on size, with 23 being the sex chromosomes. The q indicates the long arm of the chromosome, and the 24 specifies the banding pattern within that region.
How many pairs of chromosomes are there in a human skin cell production by mitosis?
In human skin cells produced by mitosis, there are 46 pairs of chromosomes, totaling 92 individual chromosomes. This is because each pair consists of one chromosome from the mother and one from the father.
What chromosome is scoliosis found on?
Researchers at Texas Scottish Rite Hospital for Children (TSRHC), one of the nation's leading pediatric centers for research and the treatment of orthopaedic conditions, have identified the first gene -- CHD7 -- associated with idiopathic scoliosis (I.S.), the most common spinal deformity in children. With no known cause or cure, idiopathic scoliosis poses a significant health burden to the pediatric population. The condition affects approximately two to three percent of school age children in the U.S. and costs an estimated several billion dollars in surgical treatment each year. The medical breakthrough is a result of a 10-year study conducted at the Sarah M. and Charles E. Seay/Martha and Pat Beard Center for Excellence in Spine Research at Texas Scottish Rite Hospital for Children, led by Carol Wise, Ph.D. With the goal of identifying genes causing idiopathic scoliosis, the research team conducted genome-wide scans and follow-up studies of 53 large families, totaling 130 individuals with a confirmed I.S. diagnosis. As a result, the team identified the first gene associated with I.S., allowing the medical community to form hypotheses to explain what causes the condition, and providing tools for future studies. "This is the most definitive link between genetics and scoliosis that has been reported so far," said Dr. Wise, director of molecular genetics at Texas Scottish Rite Hospital for Children. "It has been known for many decades that scoliosis tends to be inherited within families, but now we have found a gene which is clearly related to the development of scoliosis." Most often seen in otherwise healthy children, I.S. is an S-shaped curvature of the spine as viewed from the front that develops as the child grows. Onset typically occurs during the period of rapid growth at adolescence, and children who are still growing, particularly girls, are at the greatest risk for developing severe disease. A long-known condition, I.S. was described by the ancient Greeks and affects all populations worldwide. "This discovery lays the groundwork for future research that will hopefully identify the specific abnormalities which cause the spine curvature," said Dr. Tony Herring, chief of staff at Texas Scottish Rite Hospital for Children. "When we understand these mechanisms, we may be able to develop new preventative measures and better treatment methods." With expert researchers, biomedical engineers, physicians, staff and patients all under the same roof, Texas Scottish Rite Hospital for Children has a record of interdepartmental cooperation that generates an exceptional number of patents, discoveries and improved treatments for patients. The hospital's prestigious research efforts and innovative treatment methods make it a leader in spine research and have allowed the hospital and its staff to significantly improve care of young patients with spinal deformities throughout Texas, the United States and the world. Texas Scottish Rite Hospital for Children is one of the nation's leading pediatric centers for the treatment of orthopedic conditions, certain related neurological disorders and learning disorders, such as dyslexia. There is no charge to patient families for treatment at the hospital, and admission is open to Texas children from birth to 18 years of age. This research was funded through generous contributions from: Fondation Yves Cotrel pour la Recherche en Pathologie Rachidienne de l'Institut de France and the Scoliosis Research Society. The hospital's work is also made possible through the establishment of the Pediatric Molecular Genetics Research Laboratory at Texas Scottish Rite Hospital for Children, which was funded by: The Crystal Charity Ball 1997; Beneke Companies; Horace C. Cabe Foundation; The Cain Foundation, in honor of Effie Marie Cain; The Florence Foundation; The Hillcrest Foundation, founded by Mrs. W. W. Caruth, Sr.; Hoblitzelle Foundation; The Hoglund Foundation; Kimberly Clark Corporation; Rauscher Pierce Refsnes; Mr. and Mrs. Jack Reynolds; The Harold Simmons Foundation; Mr. and Mrs. Douglas McWilliams Smith; The Roy and Christine Sturgis Charitable and Educational Trust; USLIFE Companies; and Mr. and Mrs.Terry Worrell.
Is Khagendra Thapa affected by dwarfism?
Yes he is 20 inches tall (1 ft 8 in.) and weighs only 10 lbs at he age of 14. He is affected by dwarfism.Yes he is 1 ft 8 in or 20 in and weighs 4.5 kg or 10 lbs at the age of 14 so he is affected by dwarfism.
Where is a chromosome located inside a cell?
The chromosomes are located inside the nucleus of a eukaryote.
Cell division and chromosome duplication?
Cell division is the process by which a cell divides into two daughter cells. Chromosome duplication occurs during the cell cycle when the DNA is replicated to create identical copies of each chromosome. This ensures that each daughter cell receives a complete set of genetic material.
What are two types of chromosomes in the body how are they different?
the two types of chromatins are euchromatin and heterochromatin.They are different in that heterochromatin is coiled while euchromatin is not coiled.It is this coiling that makes heterochromatin inactive and therefore less in the nucleus when the nucleus is actively involved in protein synthesis.On the other hand,euchromatin is active because its DNA is exposed.
When viewed under a microscope,the two chromatins have different stains.
When do Homologous chromosomes separated?
Homologous chromosomes separate during meiosis I, specifically during the first stage called anaphase I. This separation ensures that each resulting daughter cell receives one copy of each homologous chromosome, contributing to genetic diversity in offspring.
What do chromosomes supply an oganism with?
Chromosomes supply an organism with genetic information in the form of DNA. This genetic information contains instructions for the development, growth, and functioning of the organism. Chromosomes also help in the inheritance of traits from one generation to the next.
What guide or pull chromosomes during mitosis?
The mitotic spindle, comprised of microtubules, guides and pulls chromosomes during mitosis. The spindle fibers attach to the centromeres of sister chromatids and help separate them to opposite poles of the cell during cell division.
the prefix di- means 2. so a diploid is two sets of chromosomes.
What is the protein handle on a chromosome?
The protein handle refers to specific regions on a chromosome where proteins can bind and interact with DNA. These protein handles help regulate various cellular processes such as gene expression, DNA replication, and chromosome structure. They play a crucial role in organizing and controlling the functions of the chromosome.
Well, the best answer to that is "Mutant".
Not all the mutations of this class are fatal, and in some cases such offsprings are born.
There is a relatively well-known example of such a case in humans- if I'm not mistaken, chromosomes 23 and 9 are involved, where the combination of the two results in a missing stop-codon, leading to a long protein that is disassembled... but I'm afraid I can'trecall the name of the protein or the disease it is related to. probably a cancer of some sort.
To the above person: You may be thinking of down syndrome, that can occur if chromosome 23 has an extra copy (due to nondisjunction).
The process in which a section of DNA is exchanged between homologous chromosomes is known as "crossing-over" and is fairly common. So common, in fact, that it happens in every one of us, and does not mean that we will mutate. All it does is effect the possible combination of traits of our children.