Calcium moves into bones as new bone cells are formed, and moves out of bones as special cells break the bones down. Hormones that are produced by the thyroid and parathyroid glands help regulate this process. As bone cancer causes bones to break down, what might be observed in a patient's body chemistry?
A. Calcium would be released into the blood stream, causing high calcium levels.
B. Calcium levels would always remain constant, as the thyroid and parathyroid glands would compensate.
C. Calcium would be absorbed into the bones, causing low blood calcium levels.
Answer: A
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Predict the outcome of protein synthesis if a gene undergoes a mutation in its anticodon region where a charged tRNA recognizes a nonsense mutation.
A. Transcription and translation both would not continue. B. Transcription would continue but translation would not continue. C. Transcription and translation both would continue. D. Transcription would continue but translation would not continue.
Viruses that become established as stable parts of the host cell genome are called
A. temperate. B. lethal. C. potent. D. virulent.
GPCRs are receptor proteins found in the plasma membrane that are important for cellular communication. What cellular structure makes GPCRs?
A) the smooth endoplasmic reticulum B) the rough endoplasmic reticulum C) Golgi apparatus D) mitochondria
What term refers to the failure of homologous chromosomes to separate during meiosis I?
A. inversion. B. translocation. C. trisomy. D. nondisjunction. E. disjunction.