The enzyme found in stem cells and cancer cells that allows these cells to never enter replicative senescence is:

Answers

Answer 1

Answer:

Telomerase is found in high levels in germline cells (egg and sperm) and stem cells. In these cells telomere length is maintained after DNA replication and the cells do not show signs of ageing.


Related Questions

two glass tubes are placed in water one of them has very concentrated sucrose solution while the other has a concentrated sucrose solution after an hour what will happen to the liquid levels in the glass​

Answers

Answer:

The liquid levels in the solution will become more dilute (have more water) due to Osmosis.

Explanation:

This is because Osmosis moves down a concentration gradient so the water outside the solution will become more concentrated and the solution will become more dilute.

.
How does the skeleton function to store minerals?

Answers

Answer:

calcium and phosphorous,

Explanation:

which can given up if the body requires the minerals for others functions

HELP ME. I WILL MARK BRAINLIEST.
4 Spheres Observation (Bio, Geo, Atmo, Hydro) : What did you see that represents each? How did they interact with each other? and pls be specific in ur answer, and pls no links!

Answers

Answer:

The spheres interact to effect Earth’s systems and processes, and they are constantly changing each other.

For example, ocean currents (hydrosphere) affect air temperature (atmosphere): The Gulf Stream is a powerful water current in the Atlantic Ocean. It’s warm water moderates the temperatures on the east coast of the USA.

Another example of how the spheres affect each other is through erosion. Erosion happens in the desert when wind (atmosphere) shapes the sand in the geosphere. Water (hydrosphere) can also shape land, such as in the formation of the Grand Canyon.

Humans have a huge impact on all spheres. Negative impacts, such as burning fossil fuels, pollute the atmosphere. Piling up our waste in landfills affects the geosphere. Pumping waste into the oceans harms the hydrosphere. And overfishing and habitat destruction can reduce the diversity of living things in the biosphere.

However, people everywhere are working to change things. Recycling efforts are increasing all over the world, and companies are finding new ways to reduce fossil fuels. In the US alone, people are recycling six times more than a generation ago.

In the example, no RNA is made during the process. What would need to occur for lacZ to be expressed in mRNA?

Binding the RNA polymerase to the promoter sequence

Transcribing the regulatory gene

Translating the lacl sequence into protein

Unbinding the active repressor from the operator

Answers

Answer:

Binding the rna polymerase to the promoter sequence

How is Wallace's view scientific

Answers

Wallace argues that changes in species are not a result of specific individual needs of organisms to adapt to their environment. Rather, "he states that some qualities of an individual may allow it to outlive another individual without those qualities."

breathing involves the movement of diaphragm and Rib cage



true or false​

Answers

Answer:

True

Explanation:

It's a true statement as,

When we inhale the diaphragm moves downwards and the rib cage moves upwards and outwards to let enter the outside air containing oxygen come in.While we exhale the diaphragm comes to its position and the rib cage move downwards and inwards to let out the inside carbon-dioxide and other games out.

Hence, we can conclude that breathing involves the movement of diaphragm and Rib cage.

Yes,very true! This is very true because out lungs are around our rib cage,and our lungs is where we breath. For example,right now take a breath in.....Hold.... and out. And one more time. Your lungs are moving in your rib has you do that!

Hope this explains better :)

~Learning with Natalia~

A polar bear has thick, white fur that camouflages it when it sits on snow. Which type of adaptation is this modification?
A. structural
B.natural
C.functional
D.behavioral
Which on is it?

Answers

B, natural adaptation

Answer:B Natural

Explanation:Camouflage is a adaptation which animals use to blend in with their surroundings in order to protect themselves from the predators and hunters. This also gives them a better chance of survival and easy mode of hunting for food.

For example: white fox hides in the snow from the predators

Camouflage is a clear example of Physical or Structural adaptations.

-Body shape, color and body patterns are the adaptations that assists both predators and prey to camouflage

-As in the example mentioned, the polar bear with its white fur hides in the snow and waits for the right time to attack its prey without being seen

Hope it helps!!


A. Val Pro Pro

B. Leu His Ser

C. Pro Val Pro

D. Val Leu Pro

Answers

The answer is D. That’s all I have

easy one - giving brainly if correct.​

Answers

Answer: is going to be B

The active ingredient in which of the following drugs mimics a natural neurotransmitter?

Answers

Answer:

b. marijuana is correct

Explanation:

2. Use the drawing to answer this question. What type of cell is this? B А с 3 2 1 5 F D E​

Answers

Answer: Whats the drawing

Explanation:

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