The action potentials in the SA and AV nodes are largely due to:

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#Question id: 12318

#Unit 10. Ecological Principles

The evolution of mating systems is most likely affected by

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#Question id: 34181

#Unit 3. Fundamental Processes

A. In mammalian systems the DNA polymerase does not have a 5’–3’ exonuclease activity

B. In eukaryotes Synthesis of an Okazaki fragment displaces the RNA primer of the preceding fragment in the form of a “flap.”

C. FEN1 functions as an endonuclease and also has a 5’–3’ exonuclease activity

D. FEN1 prevents deletions or duplications in the genome.

Choose true and false

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#Question id: 11963

#Unit 7. System Physiology – Animal

Which of the following is generally true?

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#Question id: 3619

#Unit 8. Inheritance Biology

Alleles that are both expressed in a heterozygote are

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#Question id: 2841

#Unit 2. Cellular Organization

To duplicate a chromosome, at least half of the nucleosomes on the daughter chromosomes must be newly synthesized. But histone proteins as new and old occupies strands differently as