When an allotetraploid (AABB) is backcrossed to one of its progenitor species (AA), a sterile progeny is produced.  The genomic composition of this sterile individual can be best represented by

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#Question id: 19514

#SCPH05 I Biotechnology

A cathode and an anode are the most common components of an electrochemical cell. Which of the following claims about the cathode is correct?

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#Question id: 3698

#SCPH28 | Zoology

In this diagram of the process of DNA replication at a replication fork, the strand labeled B is the:

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#Question id: 550

#SCPH05 I Biotechnology

Which of the following statements is false?

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#Question id: 942

#SCPH06 I Botany

 a-ketoglutarate is a precursor for each of the following, except

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#Question id: 2074

#SCPH05 I Biotechnology

In some cells, there are many ion electrochemical gradients across the plasma membrane even though there are usually only one or two proton pumps present in the membrane. The gradients of the other ions are most likely accounted for by: