Cell nucleus

are intermediate filament proteins necessary for function and structural integrity of the nucleus. Lamins consist of an amino-terminal head domain, a coiled-coil central rod domain and a carboxy-terminal tail domain (Fig. 1A). They form dimers by rod domains and then associate in head-to-tail polymers creating complex network conjunction with other proteins located underneath the inner membrane of the nucleus. Mutations in the LMNA gene affect lamins dimerization and assembly (Bank et al.,…

All cell organisms have this chain of nucleotides that give them a unique coding that helps everything differ from one another. Whether within plant or animal cells, these coding strands contain our genetic information. The creation of our genetic codes derives from a mixture of our parent genetic codes. These codes we contain are called DNA, also known as deoxyribonucleic acid. These DNA strands carry all our information. Skin color, eye color, body shape, hair type, etc. This creates us…

I. Introduction to The C-Value Paradox C-Value is defined as “the amount of DNA per haploid cell or the number of kilobases per haploid cell at any given time” (Swift 1950). The C-Value Paradox states that C-Value or genome size does not always equal the number of genes contained within the genome or complexity of the organism. Order of magnitude is when more DNA than what is necessary to encode for proteins. The prokaryotic genome is much simpler than the complex genome of the eukaryote yet…

in the Cell Cells are the smallest structural unit of all organs and organ systems. They are essential to life. Both animal species and plant species need cells to maintain life. Cells have many and are made up of many organelles that have specific jobs. Animal and plants cells are different, but mainly composed of the same things. Each organelle is significant to its cell, which are the building blocks of life. At the center of almost every cell is a dense organelle called the Nucleus. It…

Cell Biology Beta cells in pancreatic tissues are described as eukaryotic cells and not prokaryotic, this is because the cell is larger in size and there is a true nucleus present which contains DNA. In prokaryotic cell there isn’t a nucleus and the DNA is free within the cytoplasm. Also Beta cells have many organelles and there is mitochondria present, which in a prokaryotic cell there are fewer organelles and there aren’t any mitochondria present. Beta cells in the pancreatic tissue release…

types’ of cells. These are prokaryotic (see diagram 1) and Eukaryotic. ( See diagram 2). Prokaryotic cells are the cells of microorganisms such as Bacteria and Achaea. Eukaryotic cells are basically cells that make all other living things such as humans and animals. You can identify the difference between these cells by their structure they both have a number of features in common but all so lots of differences. The eukaryotic cell has a membrane enclosed organelle called the nucleus. This…

enzymes The cell wall in a plant cell is made up of cellulose and other products. A structure outside the plasma membrane in plant cells The vacuole is a membrane that surrounds a mass of fluid, water and waste products of a plant. A large membrane bound vesicle found in plant cells filled with water and solutes. The plant keeps anything that it doesn’t need but doesn’t want to get rid of in the vacuole. Membrane bound sacs found in cells. A hair like structure that allows movement of cells.…

various chemicals on the embryos, and examine the results to see what changes that the chemicals would make on the structural developement, and DNA of the embryos. When examining the DNA of embryos and how it changes the shape of cells and functions of cells, the genes of that cells DNA are what need to be examined. Only by studying the individual genes and when they are activated or deactivated, can scientists understand there specific function, and how the chemicals applied to embryos affects…

The Violinist Thumb is a book by Sam Kean that describes how DNA, and heredity function. The book is divided into four parts. Part one describes the basics of heredity. It goes into detail about base pairs, amino acids, RNA, and the such to give readers an overview of the system of heredity. One of my favorite stories from part one is the story of Tsutomu Yamaguchi, who survived both atomic explosions in Japan during World War II, and lived into his nineties. Part two discusses adaptations,…

Introduction Nucleotide is a building block for deoxyribose nucleic acids which is called DNA that has four base units,adenin(A) ,thymine(T) ,guanine(G), cytosine(C). The nucleotides can bond with their base pairs(A=T,G=C) to form a linear strand that is supported by sugar-phosphate backbone. In the linear strand, some of three base sequence is a codon and each codon is related to an amino acid. These codons come together in a linear sequence and create a gene. Gene can be called as cipher that…