BIO 1050 FINAL EXAM ECU NEWEST ACTUAL

BIO 1050 FINAL EXAM ECU NEWEST ACTUAL /

UPDATED QUESTIONS AND CORRECT ANSWERS

VERIFIED/GRADED A+

diploid cells - ----Answers---cell or organism that has paired chromosomes, one from each parent (everything but sex cells)

asexual reproduction - ----Answers---only one parent and offspring are genetically identical to parent

sexual reproduction - ----Answers---2 parents

binary fission - ----Answers---prokaryotic cells

what happens during binary fission - ----Answers---1. one cells DNA gets replicated

• each copy of DNA moves to opposite sides
• cell then divides

mitosis - ----Answers---eukaryotic cell division

functions of mitosis - ----Answers---simple cell division for growth, repair, asexual reproduction

results of errors during mitosis - ----Answers---cell dies/tumor is formed

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benign tumors - ----Answers---abnormal mass of cells that stays in place - cells are normal (noncancerous)

malignant tumors - ----Answers---lumps of cancerous cells, divides excessively and spreads

wha makes cancer cells different - ----Answers---no contact inhibition (grow on top of each other) divides indefinitely reduced "stickiness"

how many mutations does it take to cause cancer - ---- Answers---2 mutations

what carcinogens cause cancer - ----Answers---x-rays uv rays radiation tobacco some viruses

can we inherit cancer - ----Answers---most mutations are not inherited

what are rare cases in which cancer can be inherited - ---- Answers---genes can be passes down and make a person more likely to get cancer 2 / 3

when will cancer appear if it is inherited - ----Answers---it will appear if multiple mutations appear

if cancer is inherited it has to be through which cells - ---- Answers---egg and sperm

what is the most common cancer that is inherited - ---- Answers---breast cancer

cancer treatments - ----Answers---surgery radiation therapy chemotherapy

radiation therapy - ----Answers---disrupt cell division

chemotherapy - ----Answers---use multiple drugs to disrupt cell division

meiosis - ----Answers---cell division that results in 4 daughter cells each with half the number of chromosomes of the parent cell (production of gametes)

results of mistakes during meiosis - ----Answers---genetic problems in person / leads to mutations

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