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Home Q & A Board Biology-Related Homework Help General Biology
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BurningAshe BurningAshe
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6 years ago
Tumor suppressor genes are distinguished from proto-oncogenes due to the fact that tumor suppressor genes normally _____ while proto-oncogenes _____.
  1.act at either the G1/S or the G2/M control point to inhibit cell division / encode proteins that stimulate cell growth and division
  2.turn on or increase the rate of cell division / mutate to form oncogenes
  3.act at either the G1/S or the G2/M control point to inhibit cell division / are switched off when mutated
  4.none of the choices

Question 2

Which of the gamete combinations below is most likely to result in a normal embryo which dies because of abnormalities in the placenta?
  1.egg / sperm
  2.sperm / sperm
  3.egg / egg
  4.all are equally likely
 
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DuhitzlitzyDuhitzlitzy
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6 years ago
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BurningAshe Author
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6 years ago
Thanks for your help!!
Hellish Lover
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Yesterday
You make an excellent tutor!
shelbycox
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2 hours ago
Just got PERFECT on my quiz
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