Which of the following are true statements about gibberellins? Check all that apply.
_____ They can restore normal growth and development in certain dwarf mutants.
_____ They inhibit amylase and other hydrolytic enzymes.
_____ They are produced in the apical regions of shoots and roots.
_____ They promote internode elongation.
_____ They hasten seed germination.
__X__ They can restore normal growth and development in certain dwarf mutants.
_____ They inhibit amylase and other hydrolytic enzymes.
__X__ They are produced in the apical regions of shoots and roots.
__X__ They promote internode elongation.
__X__ They hasten seed germination.
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As a general principle of gene regulation through operons, regulatory genes encode
A) trans-acting proteins that interact with cis-acting DNA elements. B) cis-acting proteins that interact with cis-acting DNA elements. C) cis-acting proteins that interact with trans-acting DNA elements. D) trans-acting proteins that interact with trans-acting DNA elements.
Which of the following do all fungi have in common?
a) absorption of nutrients b) symbioses with algae c) meiosis in basidia d) sexual life cycle e) coenocytic hyphae
Complex carbohydrates such as starch need to be first broken down to ____________ before they are quickly taken up by cells.
A. oligosaccharides B. amino acids C. monosaccharides D. pyruvate E. acetyl-CoA
Histological samples prepared with the ________ stain may reveal the presence of abnormal cells
A) acid-fast B) Gram C) simple safranin D) methylene blue E) hematoxylin and eosin (HE)