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Get true answers from experts in Genetics & DNA.
Genetic variation stems from the recombination of DNA and also from mutations that can occur during this recombination. DNA-repair mechanisms exist to identify damage and correct the mutations, or changes in DNA sequence, but these very mechanisms can also introduce mutations. The following is a brief description of the many kinds of mutations that can occur in DNA and their resulting consequences.
Published by Ramona Barragan 64 months ago in Genetics & DNA | +0 votes | 0 comments
Genetic engineering has been extensively used worldwide for many years to produce genetically modified fruits. here are many advantages of genetically modifying the fruits. Genetically modified fruits with pesticide resistance genes incorporated into them help eliminate spraying hazardous chemicals onto fruits. Genetic engineering also allows farmers to produce cold tolerance fruits. Genetic engineering can also make bigger and more nutritious fruits.
Published by :) Biology!! :) 64 months ago in Genetics & DNA | +0 votes | 0 comments
The immune system is one of the most important mechanisms the body has. It protects the body from most foreign and harmful viruses and bacteria.This system utilizes two types of cells known as B and T cells. The B cell goes through multiple stages in order to mature and to effectively locate and target the foreign organisms for destruction.
Published by Miguel Melgoza 64 months ago in Genetics & DNA | +0 votes | 0 comments
This article is about Down Syndrome, which is when an individual receives an extra chromosome (Chromosome 21). This doesn't seem like much, but it leads to so many disastrous complications within the bodies of individuals with it. This article explains all these complications and bring it to notice how lucky we all really are.
Published by Ravikesh Kumar 64 months ago in Genetics & DNA | +1 votes | 0 comments
Readers should be able to learn about the different DNA point mutations that occur in eukaryotes and the types of consequences they have on coding regions. Readers should be able to define the different DNA point mutations and the consequences. Readers will also be able to understand how mutations lead to genetic variation in organisms.
Published by Bouapanh Lor 64 months ago in Genetics & DNA | +0 votes | 0 comments
Silent mutations, sometimes subcategorized into synonymous substitution or synonymous mutation, is the changing of a codon that mutates into another codon that codes for the same amino acid. Differences in silent mutations are only detected by sequencing the gene. What the name doesn’t explain is that silent mutations create new exons and introns the cell is not used too. When the cell splices the introns out and combines the spliced exons; it results in a different gene than needed. Th...
Published by Justine Tan 64 months ago in Genetics & DNA | +0 votes | 0 comments
Mutations in a DNA sequence of genes can be harmful, helpful or neutral in an organism. Mutations may occur from surrounding chemicals, exposure to radiation or even a simple mistake made by RNA polymerase while copying the DNA strand. Mutagens are constantly creating mutations in the cell while repair proteins are constantly working to fix them.
Published by Erica Garcia 64 months ago in Genetics & DNA | +0 votes | 0 comments
This articles explains the main types of mutations and provides excellent examples of mutations. While mutations do change the DNA, different types of mutations have different results, which can be hard to differentiate. What makes mutations very unique is they have various effects and tend to be complex since no two mutations are the same. This article also demostrates that mutations are either minor or major depending on the severity of the alteration.
Published by Alexander Trinh 64 months ago in Genetics & DNA | +0 votes | 0 comments
Point mutations are simple mutations; however, there are different types of point mutations that can cause minor and major consequences to both the DNA sequences and protein structure and function. This article will explain and defined the two main types of point mutations along side with the mutations they cause on a molecular scale.
Published by Linh Doan 64 months ago in Genetics & DNA | +0 votes | 0 comments
This article will explain the differences between cDNA and genomic libraries and how each method is different. cDNA uses many steps to isolate a strand of DNA while genomic library depends on the size and tolerance of the cloned DNA. Although both are different they serve a purpose in storing information about their respective fragments. This will help in the long run in case researchers are stuck so that they don’t have to repeat the same process over and over again. Both types of librar...
Published by Victor Ly 64 months ago in Genetics & DNA | +0 votes | 0 comments
After reading this article one will understand all three possible hypotheses for DNA replication. One will also understand the full experiment of how we came to understand how DNA replicates. Finally after reading this article one will be able to see how radioactive labels of 14N and 15N show replication and why understanding DNA replication is important.
Published by Tiffanie Page 64 months ago in Genetics & DNA | +0 votes | 0 comments
This article talks about the different types of RNA which are the following:Messenger RNA, small inteferring RNA, microRNA, long non-coding RNA, transfer RNA,ribosomal RNA,small nuclear RNA, and RNAi. The article explains what each of the RNA's do inside the human body. The article explains each of the classes of RNA roles in eukaryotes and some in prokaryotes.
Published by C Williams 64 months ago in Genetics & DNA | +0 votes | 0 comments
Whether occurring randomly or induced by mutagens, DNA mutation and recombination are at the foundation of evolution as we know it. With modern day tools Scientists have been able to determine many of the mechanisms that cause DNA mutation. In some cases these mutations can lead to serious disease or non-viable embryos.
Published by Natalie LaCorte 64 months ago in Genetics & DNA | +0 votes | 0 comments
This article is a basic introduction to proteins and their chemical structure. It focuses primarily on the most basic aspects of what proteins are made of and how everything gets arranged. It also delves into the various structures of proteins and why they are important which serves as a good gateway into more advanced topics in biology and genetics.
Published by Denis Shakhnovich 65 months ago in Genetics & DNA | +0 votes | 0 comments
The article is a basic introduction to the different types of cell division that occur by different cell cycles. The primary focus of the article is bacteria which has a controversial question revolving around it about whether or not is sexually reproduces or not. While there is no definitive answer for this, the article provides enough facts to help anyone say whether or not it's the case.
Published by Denis Shakhnovich 65 months ago in Genetics & DNA | +0 votes | 0 comments
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