Cell division

Adult height is a polygenetic trait, which means that it is controlled by more than one gene. It is easily measured and highly heritable (h2 ~0.75- 0.9) (Kim, et al., 2010). Final adult height is the result of growth and development processes and has limited contribution from environmental factors (Weedon, et al., 2008). As a result, loci influencing height are compared and contrasted from different races. Genome-wide association (GWA) is a method used to quickly scan markers across genomes…

Rhodopsin is a GPCR found in rod cells of the eye. Rhodopsin consists of Opsin and a 11-cis-retinal chromophore. Absorption of a photon results in the isomerisation of the 11-cis-retinal to an all trans retinal, leading to a conformational change of the GPCR and formation of the intermediate…

therapy based on germinal cells is unethical as it can cause undesirable changes into the progeny of patient (Urnov et al., 2005). In my opinion, gene therapy may serve the role of a double-edged sword, which can prove to be valuable as well as harmful as it might treat a number of serious diseases, but can establish a designer-baby market on planet Earth. Thus, I agree with my textbook’s writers that we must prefer somatic cell gene therapy and should implement germinal cell based gene therapy…

in an area of expertise that is constantly advancing leads me to believe there is no better of a time to be studying this fascinating subject. A-level Biology brings me the most enjoyment out of my chosen subjects as we explore topics such as DNA, cells and biological molecules. As the year progressed I saw how every topic links to one another…

interact with actin filaments. That movement requires huge amount of hydrolysis ATP molecules to change the conformation. The genomic analysis thirteen different members of the myosin gene. In addition, the most present myosin type in all eukaryotic cells are: myosin I and myosin II. On the other hand, the less present type of myosin is myosin V. Also, myosin can be divided to two class; conventional myosin which is form the filaments, and unconventional myosin which is can be monomeric. Class I…

*************************************************** Q: 1. Look at the male and female dragons on the left. Notice that they both have horns. Can two dragons with horns have a baby dragon with no horns? A: Yes Q: 2. Why do you think it can be done? A: If each parent has Hh to make up their horns, as long as the gametes that are used in fertilization are h, then the baby will have horns. Q: 3. OK, let's make sure you remember the rule for horns. Here's a little quiz: Which of these genotypes do…

permeability factor (VPF) is an endothelial cell specific mitogen in in vitro and is the main factor responsible for vasculogenesis and angiogenesis in a variety of in vivo models. The gene transcripts level of VEGF is stimulated at the time of implantation because process of implantation occurs under hypoxic condition. In rodents, VEGF is involved during embryo–endometrium crosstalk by regulating endothelial cell proliferation and vascular permeability of endothelial cells at implantation sites…

Creative Title What if theretheir was a way to cure humans by cloning an replica of any body part?. Therapeutic cloning is taking an embryo and extracting the nucleus and transferring it to a human. Therapeutic cloning could help people in many ways because it could help people get new organs and it could help paraplegics. Although, therapeutic cloning is a good idea reproductive cloning would leave children in foster homes. Therapeutic cloning could help people get…

in West Africa. HIV-1 Tat protein is important to viral replication and infectivity. During acute infection, infected cells releases Tat by extracellular means and becomes engulfed by neighboring cells, where it activates viral replication thus increases virus infectivity. Vital brain cells known as neurons can be indirectly damaged by HIV. It infects macrophages and microglia-cells that nurture the brain, causing them to produce toxins that instruct neurons to kill themselves.…

the cell and other organelles. Fractionation is the process of breaking the cells. Firstly, the tissue is added to a solution which is ice cold, with the same water potential as the cells, and with the same PH as the cells. This has the purpose of preserving the cells so they do not rot. This solution is then homogenized, this is essentially blending the solution so the cells break open. There are four possible procedures for this, high frequency sound waves, a mild detergent, forcing cells…