What material make up a cell membrane?
a. carbohydrates
b. cellulose
c. phospholipid
Ans: c. phospholipid
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In establishing paternity by DNA fingerprinting, what proportion of microsatellite repeat alleles in a child come from the father?
A) only those on the X chromosome B) 1/4 C) 1/2 D) 3/4
You decide to do an experiment with isolated myofibrils to explore the effects of ATP hydrolysis on myofibril function. You do this by bathing the myofibrils in a solution that contains a modified form of ATP, which cannot be split into ADP and Pi. At what step will myofibril function be arrested by using this compound instead of unmodified ATP?
A. The myosin heads will remain attached to the actin filaments after the power stroke. B. Myosin heads will bind to the actin filaments, but the power stroke will not occur and actin filaments will not slide over the myosin filaments. C. Myosin heads will be unable to bind to the actin filaments. D. Myosin molecules will be unable to assemble into thick filaments. E. There will be no block in the cycle, since ATP hydrolysis is not required for this process.
A compressive force applied to bone will result in a change in bone shape by remodeling.
a. true b. false
Describe the positive control exerted by the catabolite activating protein (CAP). Include a description of catabolite repression
What will be an ideal response?