A lacOc mutant would
A) never make lac structural genes.
B) be constitutively expressed.
C) bind receptor protein.
D) have repressed expression.
E) be able to be induced by lactose.
B) be constitutively expressed.
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________ links the thick filaments to the Z line
A) Troponin B) Tropomyosin C) Titin D) Nebulin E) Myomesin
Extensive epiphytes are found in the tropical dry forests
____________________ Indicate whether the statement is true or false.
Plants that contain both vessel elements and tracheids for water transport ________.
A. Have an evolutionary disadvantage B. Conduct water and minerals more efficiently C. Are ancestors of modern plants D. Are gymnosperms and ferns E. Are typically small
Your intestine is lined with individual cells. No fluids leak between these cells from the gut into your body. Why?
What will be an ideal response?