Primary growth in roots originates from ____.
A. dermal cells
B. vascular cells
C. apical meristems
D. lateral meristems
E. the pericycle
Answer: C
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Which of these hormone-action pairs is mismatched?
A. Oxytocin-suckling B. Cortisol-glucose regulation C. Aldosterone-sodium reabsorption D. Atrial natriuretic peptide-muscle contraction E. Testosterone-secondary sex characteristics
The endoplasmic reticulum is composed of flattened sacs called
A. vacuomes. B. cristae. C. thylakoids. D. cisternae.
Which stem variation is fleshy and will grow underground parallel to the soil surface?
a. Bulb b. Tuber c. Cladophore d. Rhizomes e. Stolons
How can a single gene code for more than one protein?
A) Different types of ribosomes translate the resulting mRNA, producing different proteins. B) The exons within an mRNA can be spliced together in different ways. C) Different amino acid chains can be coded by the same mRNA. D) Different RNA polymerases transcribe it and produce different proteins.