Answer:
Eukaryotic cells
Explanation:
Eukaryotic cells are cells that have nucleus, which are encapsulate in my Lear envelope, they have membrane bound organelles like RIBOSOMES, Golgi apparatus, mitochondria, endoplasmic recticulum e.t.c. The nucleus contain the chromosome and it is rod shaped. The eukaryotic cells are larger and the RIBOSOMES are involved in protein synthesis in the cell.
Answer:
Something called side groups
Explanation:
The side groups are what make each amino acid different from the others. Of the 20 side groups used to make proteins, there are two main groups: polar and non-polar. These names refer to the way the side groups, sometimes called "R" groups, interact with the environment.
1.) D.
2.) B.
3.) D.
4.) A.
5.) B
Oops I accidentally hit the two stars :( these are right
Of the three pathways for obtaining ATP for muscle contraction , the aerobic respiration requires oxygen .
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What is respiration ?</h3>
Respiration is a biochemical process as well as a catabolic process by which food molecules are oxidised to liberate chemical energy in a step-wise process .Respiration is an energy liberating process . the energy released due to the process is temporarily stored as chemical energy in the form of ATP molecules.
Respiration are of two types ,these are aerobic respiration and anaerobic respiration .
Aerobic respiration :when food is oxidised using molecular oxygen is called aerobic respiration .38 molecules of ATP is available in the process. it occurs in both cytoplasm and mitochondria . food molecule is completely oxidised and carbon dioxide is released as by-product. example : in most of plants and animals .
Anaerobic respiration : when food is oxidised without using molecular oxygen called anaerobic respiration . 2 molecules of ATP is available in the process .it occurs in the cytoplasm .example : bacteria , yeast , mammalian RBC ,muscle tissue .
ATP: Adenosine triphosphate is called the energy currency of the cell . it is a organic compound composed of the phosphate groups ,adenine and the sugar ribose .the molecules provides energy for various biochemical processes in the body . therefore , it is called the energy currency of the cell .
Learn more about respiration here :
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In step 2: Denaturation of the double-strand occurs.
In step 3: Annealing of the primer to the single strands.
In step 4: Extension or elongation takes place in this step.
Explanation:
In the PCR program an enzyme Taq Polymerase is used because it can withstand high temperature without altering its functions.
PCR is required for the amplification of DNA into multiple copies for experimental purpose. The artificial environment is created to form new DNA molecules from the sample in question.
The first step in replication is the opening of the double helix which is done by temperature treatment in PCR. The temperature would be 90 degrees for some 30 sec to two minutes.
The next step of primer annealing would be done at 52 degrees, this is the primer melting temperature.
The elongation of the DNA strand to be synthesized will take place at 72 degrees as Taq Polymerase can withstand that temperature.
Nearly one million copies of DNA will be made after 30 cycles of PCR.
PCR products can be stored at 4 degrees for some two months.
