Already have an account? Get multiple benefits of using own account!
Login in your account..!
Remember me
Don't have an account? Create your account in less than a minutes,
Forgot password? how can I recover my password now!
Enter right registered email to receive password!
Point mutations are generally caused by a change in the single nucleotide, either by deletion, insertion or base change, in the DNA or RNA material; this is a change in the genetic material structure, the organism that is affected by the point mutation is known as appoint mutant, that is the organism that the genetic material changes. Point mutations sometime can cause a genetic disorder. For example, sickle cell anemia is a specific genetic disorder in human populations. It is caused by a point mutation of a single nucleotide at position 6 (GAG-GUG) in the -globin gene, and the glutamic acid being substituted by valine. This is a missense mutation. As we know, hemoglobin which is used by human's red blood cells to carry oxygen. And hemoglobin consists of four globin subunits (two -globin and two -globin). The -globin gene provides instruction for making -globin.Because of the point mutation, the hydrophobic side chain of the valine residue at position 6 of the beta chain in hemoglobin is able to associate with the hydrophobic patch, causing hemoglobin S molecules to aggregate and form fibrous precipitates. It will change the shape of red blood cell. Therefore, the ability of these red blood cells will decrease. Sickle-cell disease is associated with a number of acute and chronic health problems, such as severe infections, attacks of severe pain, stroke, and an increased risk of death.
Select an article from a magazine or newspaper that has something in it that pertains to biology. This will serve as the "target article" for this assignment. For instance, you can select an article about medicine, invasive species, nature, conservat..
Consider a pre-mRNA that is 12,700 nucleotides long and contains seven 100 base exons separated by 2000 base introns. It seems like an overwhelming task for the splicing machinery to find the exons buried in the intron sequences and to splice them..
Explain how CO2 enters leaves. What environmental factors control stomatal movement? How are these factors related to physical and chemical properties that control the opening and closing of stomata
A forty-five year old woman goes to the primary care physician with abdmonal pain, nausea, and non - bloody diarrhea. A gram stain of a stool sample presents with gram negative rods.
A chemical reaction in which polymers are synthesized from their building blocks is called.
Significant historical events for General Electric (e.g. mergers, divestments, etc), and key leaders including the board and top management team.
Determine what functional adaptation does cartilage have over bone in making up the external framework of the nose?
What does a blood pressure measurement of 110/70 mean?
Humans have quite a few instances of suboptimal design and evolutionary quirks. Like most animals, we vestigial structures things that evolved for specific reason at one point in our evolution,
Describe the creation and flow of Cerebrospinal Fluid in the Central Nervous System
Compare this to the opposite, a time period of stability followed by a time period of continual environmental fluctuation. In which case would you expect to see more species go extinct
A protein that tests disulfide positive is oxidized. Spectrophotometry readings are taken for both unoxidized and oxidized protein.
Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!
whatsapp: +1-415-670-9521
Phone: +1-415-670-9521
Email: [email protected]
All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd