What does the 3 chromosome do?
Chromosome 3 is one of the 23 pairs of chromosomes in humans.
People normally have two copies of this chromosome.
Chromosome 3 spans almost 200 million base pairs (the building material of DNA) and represents about 6.5 percent of the total DNA in cells….Chromosome 3GenBankCM000665 (FASTA)19 more rows.
What happens if you are missing chromosome 3?
The deletion occurs at the end of the short (p) arm of the chromosome. This chromosomal change often leads to intellectual disability, developmental delay, and abnormal physical features. Individuals with 3p deletion syndrome typically have severe to profound intellectual disability.
What is chromosome and its function?
Chromosomes are thread-like structures located inside the nucleus of animal and plant cells. Each chromosome is made of protein and a single molecule of deoxyribonucleic acid (DNA). Passed from parents to offspring, DNA contains the specific instructions that make each type of living creature unique.
What is Trisomy 3 syndrome?
Chromosome 3, Trisomy 3q2 is a rare chromosomal disorder in which a portion of the 3rd chromosome appears three times (trisomy) rather than twice in cells of the body. Associated symptoms and findings may be variable, depending upon the specific length and location of the duplicated (trisomic) portion of chromosome 3.
Is it bad to have extra chromosomes?
You have two copies of every chromosome. … When meiosis messes up, you can end up with too many or too few chromosomes. One extra chromosome in an egg or sperm means three in the fertilized egg and so trisomy. Just like certain things increase your risk for cancer, trisomy has risk factors too.
Which chromosome is Down syndrome found on?
Typically, a baby is born with 46 chromosomes. Babies with Down syndrome have an extra copy of one of these chromosomes, chromosome 21. A medical term for having an extra copy of a chromosome is ‘trisomy. ‘ Down syndrome is also referred to as Trisomy 21.