The hormone leptin is produced in ____________________ cells. Fill in the blank(s) with the appropriate word(s)
ANS: fat
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What does pharmacogenomics determine about a patient to help with dosage of drugs such as
warfarin?
a. warfarin metabolism genes b. body size c. other diseases the patient may have d. medications the patient is taking e. patient age
If an enzyme consists of a protein component and a non-protein component, the protein component is referred as the
A. apoenzyme. B. holoenzyme. C. coenzyme. D. prosthetic group.
Most hereditary forms of breast and ovarian cancer arise in women who inherit a mutant copy of either the BRCA1 or BRCA2 gene, each of which encodes a proteins involved directly in
A) inhibiting apoptosis. B) repairing DNA double-strand breaks. C) passing through the G1 restriction point. D) a spindle assembly checkpoint. E) activating Rho proteins to increase cell motility.
During normal DNA replication, why is part of the DNA at the ends of linear chromosomes NOT copied into the new DNA strands?
a. because DNA ligase cannot join pieces at the end of a chromosome b. because RNA primers at the beginning of a new strand cannot be replaced with DNA c. because those ends are Okazaki fragments that are lost d. because cells do not need the DNA at the ends of chromosomes