Which of the following statements is false?
a Checkpoint gene products that inhibit mitosis
are called proto-oncogenes.
b. Metastasis is the invasion of cancer cells into
normal tissue.
c. Malignant tumors differ from benign tumors
in that their cells migrate.
d. Cancer cells have lost the ability to stop
dividing.
e. The parent cell that started a cancer may have
undergone a checkpoint gene mutation
Answer: a
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How does the metabolism occurring in chloroplasts differ from that of mitochondria?
A. Different proton sources B. Different electron sources C. Different electron acceptors D. Different electron acceptors and sources E. None of these answer options is correct.
A euryhaline species can tolerate:
a. a wide range of temperatures. b. a narrow range of temperatures. c. a wide range of salinities. d. a narrow range of salinities.
Epigenetic effects on gene expression may occur through covalent modifications of ________ and ________
Fill in the blank with correct word.
Materials move in and out of the nucleus via endocytosis and exocytosis.
Answer the following statement true (T) or false (F)