Question

While some mutations can benefit an organism, others are harmful and can lead to cancer. Which of the following best describes how mutations can cause cancer in an organism?

Cell division becomes uncontrolled when mutations occur in genes that regulate cell division.
Cells with mutations outnumber and consume normal cells that do not have mutations.
A mutation can attack a cell's DNA and cause an autoimmune response in the cells.
Mutations cause cells to become unable to divide and the cells die in masses, forming tumors.

I think its A but i am not 100 percent sure. Please someone

Answer 1

please someone help me. Thank you!

Answer 2

@sleepyjess pleasee help me

Answer 3

A glass dish containing a few drops of water in the presence of carbon dioxide gas, nitrogen gas, and small organic compounds is heated by a flame and UV radiation. Which early Earth scenario does this set-up most closely resemble?

Deep sea volcanoes giving off gases, sulfur, and iron to produce organic molecules
Lightning in the early atmosphere, which may have produced the first organic molecules
The replication of RNA near the ocean's surface in the day and night cycling of temperatures
Amino acid formation from organic molecules in ocean water splashing on hot rock, sand, or clay

Answer 4

and that question. I think its C but i am not 100% sure either. Please someone help me. Thank you!

Answer 5

Please someone! /:

Answer 6

@GIitter please help me

Answer 7

Im sorry but i cant help atm im busy ;-;

Answer 8

oh... its okay lol. when will you be free?

Answer 9

u there?

Answer 10

yeah. I dont know when though ;-; tbh

Answer 11

A for the first and B for the second

Answer 12

no direct answers please

Answer 13

@caozeyuan you sure the second one isn't C?

Answer 14

@zepdrix

Answer 15

@Will.H

Answer 16

@563blackghost

Answer 17

@3mar

Answer 18

hello?

Answer 19

@zepdrix please help me

Answer 20

Science? +_+
Nawww I aint bout that life.

Answer 21

Sorry for disappointing you. I am not so good at it!!

Answer 22

for the first question, it isnt D because that is what i got wrong lol

Answer 23

yeah the first one is A i know. But the second one i don't know if its C or B

Answer 24

u took this test before ?

Answer 25

hold on let me check what i got for that

Answer 26

ok thanks

Answer 27

I didnt have that exact question, but I had a similar one, so i THINK it is c. but that is a guess

Answer 28

oh ok so not b?

Answer 29

actually i completely take that back i have no idea. sorry

Answer 30

oh ok /: biology sucks lmao

Answer 31

I know right?

Answer 32

and my internet is sucking even more now so i can't even search it up XD

Answer 33

well good luck, sorry i wasnt any help!

Answer 34

its alright!

Answer 35

you should really have asked this in the biology section of openstudy.

Fortunately I am a molecular biologist.
Cancer is when there is uncontrolled cell division. Normally your cells have a limited number of divisions before they die, known as senescence. Cancer or tumour lines have unlimited cycles. It is important to know that in the case of cancer, the mutation leads to abnormal cell division. Genetic mutations alone do not necessarily lead to cancer cells.

For the second question the experiment is basically a simulation of Miller-Urey experiment
https://www2.gwu.edu/~darwin/BiSc151/Origin/origin.html

https://en.wikipedia.org/wiki/Miller%E2%80%93Urey_experiment

Sparks to resemble lightning catalysed reactions of the gases thought to make up the early atmosphere (water, carbon dioxide, nitrogen) to form amino acids.

Answer 36

@steve816