DNA and DNA Structure

The first human genome - was created in 2004 and marked a major milestone in genetic research, paving the way for advancements in personalized medicine and biotechnology. This achievement relies on understanding DNA's double helix structure, first described by James Watson and Francis Crick in 1953. The double helix describes the two intertwined strands of DNA, resembling a twisted ladder, with its base pairs (adenine with thymine, and guanine with cytosine) forming the 'rungs'. This structure is critical for DNA's ability to self-replicate and carry genetic information, making it the fundamental blueprint for life.

interior region of DNA does not like water. But DNA exists in water. s hydrophobic because these bases are largely nonpolar. This 'does not like water' characteristic is due to their chemical structure.

PCR stands for Polymerase Chain Reaction. It is a widely used laboratory technique in molecular biology to make millions to billions of copies of a specific DNA segment. This process relies on thermal cycling, consisting of repeated cycles of heating and cooling for DNA melting and enzymatic replication of the DNA. PCR is a foundational technique with various applications, including genetic testing, forensic

DNA has coding and non-coding gene regions. 1 cell= 6-8ft DNA

Genes are specific sections of DNA and are responsible for making proteins. As few as 100s of bases some up to two million.

foxp2- coding gene for the protein responsible for neuron growth in brain development

apoE = Apolipoprotein E is a protein involved in the metabolism of fats in the body. It plays a crucial role in lipid transport and is associated with a higher risk of Alzheimer's disease depending on the specific alleles inherited.

Chromosomes are the structures within cells that contain DNA and genes. Each human cell has 23 pairs of chromosomes, which collectively house the genetic information required for growth, development, and functioning.