Answer:
increasing extension time
Explanation:
The Polymerase Chain Reaction is a technique widely used in molecular biology laboratories to amplify target DNA regions. The standard steps of a PCR are as follow 1-denaturation, 2-annealing and 3-elongation/extension. These steps are repeated 15-40 times in order to exponentially amplify the linear DNA fragment. It is well known that longer extension times can be used as a strategy to increase the yield of longer PCR products. This is because the extension time depends on the synthesis rate of the DNA polymerase used in PCR technique and the length of the DNA fragment to be amplified.
Answer:
Why has this work been written?
Who is the audience and what is the message?
Is it sponsored? Has a group or company paid the author to make these claims? Consider, for instance, lobby groups, special interest groups, corporate entities etc.
Is it biased? Is the author affected by political, social, economic, environmental, religious, cultural, personal or any other bias?
Explanation:
Answer:
She should hang up a feeder of the old food next to the feeder of new food to test which one they really like more.
1.It is not natural.
2.It can came up with side effects and unbalance some species.
<span>To summarize, when we swallow food, the food pushes on the soft palate, sealing off the nasal cavity and preventing food from entering the nose. The food then begins to slide down the esophagus. The swallowing reflex raises the larynx up under the epiglottis as the ball of food pushes down the epiglottis, sealing off the trachea; then the esophageal sphincter relaxes so the food passes through the esophagus. I hope this helps you! :D</span>
