When pairs of human 23 and mouse 20 homologs are compared, the genes located on either side also tend to be homologs so this homology can be compared by using

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#Question id: 31033

#Unit 4. Cell Communication and Cell Signaling

PKA promotes glycogen degradation indirectly by phosphorylating and activating:

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#Question id: 4089

#Unit 3. Fundamental Processes

An investigator incubates an unprocessed RNA molecule containing an intron in an extract absent of any protein. Correct splicing of the RNA is observed, but only when guanosine is present. What can the investigator conclude about the RNA molecule?

a. It contains a ribozyme. 

b. Self-splicing has occurred.

c. It contains a group II intron.

d. It contains a group I intron.

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#Question id: 10392

#Unit 6. System Physiology – Plant

Structural domains in phytochrome are dimeric chromoproteins. The two sub‐units of phytochromes are linked with

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#Question id: 19228

#Unit 12. Applied Biology

A physical gene transformation method that can be used only with plant cell protoplasts that can be regenerated into viable plants

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#Question id: 5543

#Unit 5. Developmental Biology

What is the purpose of the chorion in terrestrial vertebrate embryos?