Biology, 07.11.2019 22:31 kiarasanchez17
The pcr (polymerase chain reaction) protocol that is currently used in laboratories was facilitated by the discovery of a bacterium called thermus aquaticus in a hot spring inside yellowstone national park, in wyoming. this organism contains a heat-stable form of dna polymerase known as taq polymerase, which continues to function even after it has been heated to 95°c. a. why would such a heat-stable polymerase be beneficial in pcr? b. what would happen if it weren’t heat stable? c. how might you choose a region of dna for a pcr primer so as to increase the temperature necessary for primer annealing (to minimize nonspecific pcr products)? d. a pcr reaction begins with 5 double stranded segment of dna. estimate the number of double-stranded copies of dna that are present after the completion of 15 amplification cycles?
Answers: 3
Biology, 22.06.2019 04:30
Rachel ate a piece of fruit and happened to drop the seeds in her backyard. after a few weeks, she saw a small plant with flowers growing in the backyard. which group does this plant belong to? a. angiosperms b. gymnosperms c. pteridophytes d. bryophytes e. chytrids
Answers: 1
Biology, 22.06.2019 13:30
Color blindedness is a sex-linked trait. if we could see the pedigree chart for several more generations of the family illustrated here, we would expect a) more males to be color blind. eliminate b) more females to be color blind. c) no females to ever be color blind. d) an equal number of males and females that are color blind.
Answers: 2
Biology, 22.06.2019 16:00
Why are some people more concerned about shark survival than about shark attacks?
Answers: 3
The pcr (polymerase chain reaction) protocol that is currently used in laboratories was facilitated...
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