P Arm

The P arm is a “short” arm of a chromosome, and it is one of the two arms of a chromosome that contain genetic material. The other arm of the chromosome is called the Q arm.

Chromosomes are long strands of DNA that contain the genetic information that determines many of our physical characteristics, such as our hair color, eye color, and height. Each chromosome is made up of two arms, the P arm and the Q arm, which are connected by a central region called the centromere.

The classification of the p arm and the q arm as “short” and “long” is purely a matter of convention, and it does not reflect any actual difference in the length of the arms. In fact, the length of the arms of a chromosome can vary greatly from one chromosome to another, and there is no general rule about which arm is shorter or longer.

The P arm and the Q arm are mirror images of each other, and they contain many of the same genes. However, some genes are found only on the P arm, while others are found only on the Q arm.

The P arm and the Q arm are numbered according to their position on the chromosome. For example, the P arm of chromosome 1 is referred to as “1p”, while the Q arm is referred to as “1q”.

Sources & Resources

  1. “Chromosome P Arm” – https://www.ncbi.nlm.nih.gov/books/NBK2220/ This website is a resource from the National Center for Biotechnology Information (NCBI) that provides information about the P arm of chromosomes.
  2. “Human Chromosome P Arm” – https://www.genome.gov/genetics-glossary/Human-Chromosome-P-Arm This website is a resource from the National Human Genome Research Institute (NHGRI) that provides information about the P arm of human chromosomes.
  3. “Chromosome P Arms” – https://www.britannica.com/science/chromosome-p-arms This website is a resource from Encyclop√¶dia Britannica that provides information about the P arms of chromosomes.
  4. “P Arm” – https://ghr.nlm.nih.gov/glossary/p-arm This website is a resource from the National Institute of Health’s Genetics Home Reference that provides information about the P arm of chromosomes.
  5. “P Arm of Chromosomes” – https://www.yourdictionary.com/p-arm-of-chromosomes This website is a resource from Your Dictionary that provides information about the P arm of chromosomes.

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