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Biology final exam
Terms in this set (14)
A malignant tumor is more dangerous than a benign tumor because
its cells invade other tissues.
The incidence of cancer increases dramatically in older humans because as we age, normal cell division inhibitors cease to function.
the longer we live, the more mutations we accumulate.
Tumor suppressor genes
can encode proteins that can slow down the cell cycle.
Proto-oncogenes can change into oncogenes that cause cancer. Which of the following best explains the presence of these potential time bombs in eukaryotic cells
Proto-oncogenes enable cells to divide.
True or false? New mutations are more likely to be harmful than beneficial to the individual
Which of the following organisms have the ability to repair DNA and thus minimize mutations?
All living things
What type of mutation occurs from abnormalities that naturally occur during biological processes?
Induced Mutations are caused by...
substitution of a single nucleotide
changes a single amino acid in a protein sequence
does not alter the amino acid sequence
change a codon to a stop codon, stopping the production
addition or deletion of a nucleotide
Which of the following is true about the product of the p53 gene?
It causes cell death via apoptosis
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