just state the correct choice 1.Which of the following processes do normal proto
ID: 209476 • Letter: J
Question
just state the correct choice
1.Which of the following processes do normal proto-oncogenes typically exhibit?
A)They normally suppress tumor growth.
B)They stimulate normal cell growth and division.
C)They are underexpressed in cancer cells
2. A researcher found a method she could use to manipulate and quantify phosphorylation and methylation in embryonic cells in culture. One of her colleagues suggested she try increased methylation of cytosine (C) nucleotides in the DNA of promoters of a mammalian system. Which of the following results would she most likely see?
A) activation of histone tails for enzymatic function
B) inactivation of the selected genes
c) higher levels of transcription of certain genes
3. Which of the following functions does the product of a normal p53 gene carry out?
A)It inhibits the cell cycle.
B)It causes cells to reduce expression of genes involved in DNA repair.
C)It allows cells to pass on mutations due to DNA damage.
Explanation / Answer
1. B)They stimulate normal cell growth and division
2. B) inactivation of the selected genes
3. A)It inhibits the cell cycle.
Related Questions
Navigate
Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.