1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
MArishka [77]
3 years ago
7

which of the following explains why normal cells grown in a petri dish tend to stop growing once they covered the bottom of the

dish? A.) the petri dish speed up cell growth B.) contact with other cells stops cell growth C.) the cells lack cyclin D.) most cells grown in petri dishes have a defective p53....but it says B is wrong
Biology
2 answers:
UNO [17]3 years ago
7 0

Answer: Option B

Explanation:

The normal cells when grown in a nutrient medium starts growing in into the petri dish. The cells keep on growing and when the bottom layer of the plate is filled with the cells then the cells in the petri dish stops growing. This is because the cells observes the contact of one cell with another.

This is known as contact inhibition which does not allows the growth of one cell upon another. Contact inhibition is a part of cell signaling in which there are check points that allows the optimum growth of the cells.

This is a mechanism which helps the cells in optimum growth. This helps in preventing the cell from developing tumor by dividing uninterruptedly.

juin [17]3 years ago
6 0
Sorry if this is wrong but the answer should be D
You might be interested in
The ________ cartilage is shaped like a shield, with its notch on the upper edge marking the level of bifurcation of the common
HACTEHA [7]
The answer would be thyroid.
4 0
2 years ago
Read 2 more answers
Rock particles dropped by wind or water are called?
ANTONII [103]
Sediments is the answers
5 0
3 years ago
HELP! Which characteristic of life is demonstrated when eagles use their sharp talons to get fish out of the water.
Anika [276]
The answer is D. Instinct

Eagles evolved better over the years to hunt their targets easier, which explains why they have sharp talons, they instinctively use them to hunt their prey.
3 0
3 years ago
Read 2 more answers
What is one way that cellular respiration differs from photosynthesis?
Ugo [173]

Answer:O The final product of cellular respiration is electromagnetic radiation.

The energy conversion in cellular respiration takes place in the chloroplast.

The main source of chemical energy in cellular respiration is water.

Explanation:

7 0
2 years ago
According to Kolreuter's experiment, how could you ensure that pink flowers were always produced? Hint- Pink flowers are C'C", r
bearhunter [10]

Let,

Dominant trait, red color be designated as C'C'

Recessive trait, white color be represented as C"C"

The F₁ generation of the cross :

C'C'  X C"C" = C'C"

F₂ generation cross is shown in the image attached.

According to the cross, the probability of pink flower being produces 1s 50%

6 0
3 years ago
Other questions:
  • What dose an organism’s genotype describe?
    10·1 answer
  • 50 POINTS !!!!!!!!!!!!!!!!!!!!!!!!!
    6·2 answers
  • Many researchers argue that teens today have weaker social skills than teens of the past because they are no longer used to comm
    9·2 answers
  • What observations do you have about the bacteria cell​
    10·1 answer
  • Amino acids are linked together to make proteins by removing a molecule of _____ in a process called _______
    10·2 answers
  • Which of these is a shortcoming of the Clean Water Act? A.) excludes drain pipes B.) excludes lakes, rivers and streams c.) excl
    12·1 answer
  • Type I alveolar cells:
    7·1 answer
  • Plants get their energy from the sun through photosynthesis. This energy is trapped in bonds of complex compounds the plants cre
    14·1 answer
  • Which one is an example of natural selection?
    7·1 answer
  • The fatty membrane that hangs like an apron from the inferolateral margin of the stomach and overlies the small intestine is cal
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!