Common Symptoms. 1  Changes in Fetal ActivityBy the time your babyâs head is engaged in your pelvis, heâll have a lot less room for any more than a twist or squirm. 2  Pelvic PainIf your babyâs head is pressing into your pelvis, hips and bladder, youâll feel more pressure as the week wears on.
The significance of a DNA is very high. The gene's sequence is like language that instructs cell to manufacture a particular protein. An intermediate language, encoded in the sequence of Ribonucleic Acid (RNA), translates a gene's message into a protein's amino acid sequence. It is the protein that determines the trait. This is called central dogma of life.
Best Answer: A chromosome is an organized structure of DNA and protein (Chromatin) that is found in cells. Chromosomes contain DNA-bound proteins, which serve to package the DNA and control its functions. The essential unit of DNA packaging is the nucleosome. A nucleosome consists of a small amount of DNA wrapped up with protein. The proteins that interact with DNA to form chromatin comprise a family of basic proteins called histones. There are five different types of histone protein: H1, H2A, H2B, H3, and H4. Of these, two molecules each of H2A, H2B, H3, and H4 combine to form a histone octamer. DNA wraps around the octamer, making 1 3/4 turns around the protein complex. The octamer plus the DNA comprise what is called the nucleosome core. A small stretch of DNA runs between adjacent nucleosome cores, and is known as the linker. A single nucleosome consists of one core plus a linker.