<span>Mutation in the gene encoding the recently isolated WASP protein has now been identified as the genetic defect responsible for the X-linked Wiskott-Aldrich syndrome (WAS), a primary immunodeficiency disease associated with extensive phenotypic variability.</span>
1.mRNA is GACUUUAAUGGCUUU
2.mRNA is UAAGCGCCCUUUAAA
3. DNA is CCTTGGAATGGTCGA
4.mRNA is CCUGGAAAUCGCCUU
A.A is done differently at all schools so I cannot figure that out for you
Answer: 1-4-5-6
Explanation: Polymerase Chain Reaction or PCR is a lab technique used to make numerous copies of determined section of a DNA. The process requires 5 ingredients to perform:
1) The DNA template to be copied, which can be obtained by disrupting the nuclear membrane of a cell and releasing its components into a solution;
2) Short sequences of DNA, called primers, designed to be complementary to the DNA to be copied;
3) DNA nucleotide bases, also known as dNTPs (A, T, C and G);
4) Taq polymerase enzyme;
5) Buffer to ensure optimal conditions to the reaction;
PCR involves three stages:
- Denaturing: this stage takes 15 to 30 seconds and consists of putting the DNA and the other ingredients in a thermal cycler, heated to 94-95°C. In that temperature, the DNA to break into two strands, in a process called Denaturation;
- Annealing: the temperature is reduced to 50-65°C, so the primers can attached itself to a specific location on the stranded DNA. This step initiates the synthesis, because the polymerase enzyme can only add bases to a double strand of DNA. Once bounded, it takes 10 to 30 seconds to make a new complimentary strand of DNA from the model;
- Extending: In this stage, the temperature is increased to 72°C, which enables the Taq polymerase enzyme. This enzyme comes from a bacteria, which supports high temperatures, and has a role of builiding the complimentary strand by binding the primer and adding the DNA bases to the single strand. This creates a new molecule of DNA. The time this step takes depends on the length of the DNA to be copied;
Answer:
A) Channel Protein
Explanation:
Channel proteins span the membrane and make hydrophilic tunnels across it, allowing their target molecules to pass through by diffusion.
Channels are very selective and will accept only one type of molecule to transport
A channel protein, a type of transport protein, acts like a pore in the membrane that lets water molecules or small ions through quickly.
