The wall between the two mature sieve tube elements contain a sieve plates, these sieve plate pores are open —that is, unobstructed by

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#Question id: 2668

#XL - T Zoology

The toxic shock syndrome toxin is produced by some Salmonella species when there is not sufficient iron present. When iron is present, it prevents transcription of the TSS-toxin gene. Iron therefore serves as __________.

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#Question id: 97

#XL - Q Biochemistry

Which is a difference between maltose and cellobiose?

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#Question id: 16475

#XL - T Zoology

Cultures that facilitate cell-to-cell interactions and signaling among cells and allow their study, are

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#Question id: 19581

#XL - P Chemistry

Producer gas is defined as which of the following mixtures?

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#Question id: 12941

#XL - S Microbiology

Name the therapeutic protein which has been used to successfully treat certain types of breast cancer.