Practice Questions

TLS Online TPP Program

#Question id: 2962

Which of the following experimental observations (some real, some contrived) would not be consistent with our current understanding of cytokinesis?

#Unit 2. Cellular Organization

Anti-myosin antibodies injected in a dividing cell cause cytokinesis to stop.
When the myosin II gene is mutated, cells undergo nuclear division, but not cytokinesis.
Anti-actin antibodies injected into dividing cells have no effect on cytokinesis.
Actin filaments seen in micrographs are aligned parallel to the cleavage furrow.

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TLS Online TPP Program

#Question id: 19224

#Unit 12. Applied Biology

Transformation efficiency is usually low, plants have been successfully transformed with large DNA fragments ranging from

TLS Online TPP Program

#Question id: 19225

#Unit 12. Applied Biology

Modification of the tissue culture conditions by the inclusion of ________ during transformation of grape, rice, corn, or soybean has been found to increase the transformation frequencies of those plant cells.

TLS Online TPP Program

#Question id: 19226

#Unit 12. Applied Biology

A systematic examination of the conditions that are used in Agrobacterium-mediated plant transformation revealed that a hormone that significantly decreased the transfer of genes to plant genomes. It is

TLS Online TPP Program

#Question id: 19227

#Unit 12. Applied Biology

Genetically transformed plant using the A. tumefaciens strain expressing ACC deaminase, the transformation frequency of the plants

TLS Online TPP Program

#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

TLS Online TPP Program

#Question id: 19229

#Unit 12. Applied Biology

A physical gene transformation method that cannot an effective way to deliver DNA to plant cells