Sieving effect that contributes to the separation of proteins according to their size, in techniques such as SDS–gel electrophoresis, the concentration of gel used

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#Question id: 9614

#XL - R Botany

Some molecular data place the giant panda in the bear family (Ursidae) but place the lesser panda in the raccoon family (Procyonidae). Consequently, the morphological similarities of these two species are probably due to

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#Question id: 11009

#XL - T Zoology

What is the normal total delay of the cardiac impulse in the A-V node plus bundle?

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#Question id: 5269

#XL - S Microbiology

The material responsible for transformation was shown to be DNA by

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#Question id: 3687

#XL - S Microbiology

As the two strands of the double helix are separated, the positive supercoiling interferes with the further unwinding of DNA. Which of the following enzyme makes a break in a strand of DNA to release the supercoiling and facilitate the replication to occur?

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#Question id: 5245

#XL - T Zoology

Which method of gene transfer involves direct contact between the bacteria?