List the characteristics of cancer cells that make them different from noncancer cells.
What will be an ideal response?
1. Cancer cells lack differentiation.
2. Cancer cells have abnormal nuclei.
3. Cancer cells have unlimited potential to replicate.
4. Cancer cells form tumors.
5. Cancer cells disregard growth factors.
6. Cancer cells undergo angiogenesis and metastasis.
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Where within a eukaryotic cell is ribosomal RNA (rRNA) synthesized?
A) cytoplasm B) lysosome C) mitochondrion D) nucleolus
A transcriptional regulator that decreases transcription of a gene from a vast distance is known as a(n
A) enhancer. B) upstream control element. C) regulator. D) nonsense mutation. E) silencer.
Offshore financial centers are strictly regulated by international agencies
Indicate whether this statement is true or false.
Which scenario is an example of commensalism?
a. acacia trees coevolved with ant colonies that protect the tree from herbivores b. bacteria provide glucose to legume plants c. cattle egrets feed on insects flushed out from the grass by cattle d. plants coevolved with their pollinators