The ECM and basement membrane has to be broken down in order metastasis to occur?

a. true
b. false


Ans: a. true

Biology & Microbiology

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Allelopathy is

A. interference competition. B. the secretion of toxins into the environment by plant roots. C. intraspecific competition. D. the transmission of viruses from deer to rabbits. E. the movement of genes from one species to another.

Biology & Microbiology

Viruses defy characterization as living organisms even though they possess nucleic acids and proteins. The reason why viruses are not considered to be alive is because they

A. form spontaneously.material. B. cannot form spontaneously. C. cannot reproduce without a host cell. D. lack genetic Viruses defy characterization as living organisms even though they possess nucleic acids and proteins. The reason why viruses are not considered to be alive is because they

Biology & Microbiology

Four of the five answers listed below are

caused by recessive genes. Select the EXCEPTION.

a. achondroplasia. b. phenylketonuria. c. Tay-Sachs. d. hemophilia e. Duchenne muscular dystrophy

Biology & Microbiology

Restriction enzymes are useful only on synthetic DNA molecules.

Answer the following statement true (T) or false (F)

Biology & Microbiology