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dedylja [7]
3 years ago
10

Imagine that scientists have discovered an industrial pollutant that modifies the structure of a cell cycle checkpoint protein s

uch that it loses its function. Cultured human cells exposed to this molecule divide at a rate double that of untreated cells. Based on these data only, one could conclude that the chemical is____________.
Biology
1 answer:
Nadya [2.5K]3 years ago
7 0

Answer:

Carcinogenic

Explanation:

A carcinogenic substance is able to modify or damage the genome in a way which promotes the formation of cancerous cells. Cell cycle checkpoint proteins are very crucial for the progression of normal cell cycle. They check for any anomaly in their designated step and halt the process if it is detected. Repair mechanism is activated and cell cycle does not progress till the damage has been repaired.

Here, the pollutant alters the structure of these proteins such that they lose their function. They are not be able to stop cell cycle from progressing even if there is some damage in the genome. The cell divides and gives rise to more damaged cells. Eventually these cells lose their normal function and just keep dividing due to which their division rate becomes double of the normal rate. It can ultimately give rise to cancer which is why the chemical is carcinogenic.  

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Which structures are considered part of the reproductive system?
Katarina [22]

Answer:

Ovaries, Uterus, Testes

Explanation:

Ovaries are what carry the Zygote's (eggs) and the Uterus is where a fertelized grows into a baby. If the egg is not fertilized in a certain amount of time the egg becomes infertile, the body goes through a 3-7 day cycle of menstruation. The Testes are the organs (balls) which carry sperm cells, which will fertilized a healthy egg.

3 0
3 years ago
What causes people to get sick from E. coli, and what would the symptoms be? Also, how can people avoid eating contaminated food
Lunna [17]

ANSWER FOR QUESTION 1:

The most common type of E. coli infection that causes illness in people is called E. coli O157, which produces a toxin known as Shiga-toxin. Shiga-toxin producing E. coli is abbreviated as STEC. Symptoms of infection with this germ include watery or bloody diarrhea, fever, abdominal cramps, nausea, and vomiting.

ANSWER FOR QUESTION 2:

Some other germs don’t cause as many illnesses, but when they do, the illnesses are more likely to lead to hospitalization. Those germs include: Anyone can get sick from eating contaminated food. Follow four simple food safety steps —clean, separate, cook, and chill—to lower your chance of food poisoning and to protect yourself and your loved ones.

4 0
2 years ago
In what order do the stages of prenatal development occur?
harina [27]

 The process of prenatal development occurs in three main stages and they are listed in order;

<span>1. </span>Germinal Stage - begins at conception when the sperm and egg cell joined in one of the two fallopian tubes.

<span>2. </span>Embryonic Stage - begins at the beginning of the third week after conception. This stage plays an important role in the development of the brain.

<span>3.  </span>Fetal Stage - begins during the ninth week and lasts until birth.






5 0
3 years ago
What two conditions are needed for clouds to form?
ddd [48]

Answer:

''The air high above the air is colder than air at the surface. The vapor rises until it reaches a low enough temperature and pressure to condense water vapor into water droplets and form a cloud. When vapor condenses into liquid or solid particles, it loses some of its energy to the air''. From Google PLz like Thx ! @BRAINLY

Explanation:

8 0
3 years ago
Read 2 more answers
Which of the following would you use to inhibit the contraction of muscle in vitro as a control for an experiment you are conduc
borishaifa [10]

Answer:

The correct answer is option A. a motor protein ATPase inhibitor.

Explanation:

Motor proteins are sub-atomic motors that utilize ATP hydrolysis to move along cytoskeletal filaments inside the cell. They satisfy numerous capacities inside the biological system, controlling the sliding of filaments for muscle contraction and intervening intracellular movement along biopolymer filament tracks.  

The two globular head motor areas in heavy chains can change over the chemical energy of ATP hydrolysis into mechanical work to move along microtubules.

Thus, in vitro experiment inhibitor of the motor protein, ATPase will be a control.

6 0
3 years ago
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