Answer:
Promoter sequences are DNA sequences that define where transcription of a gene by RNA polymerase begins. Promoter sequences are typically located directly upstream or at the 5' end of the transcription initiation site.
Explanation:
Skin cancer often appear as change in skin, such as a growth, irritation, or sore that does not heal or as a change in a wart or mole.
<h3>What is Cancer?</h3>
This is referred as a medical condition in which cells of the body divide in an uncontrollable manner and then spreads to other parts which makes it dangerous.
It also occurs in different types of forms such as a growth, irritation, or sore that does not heal or as a change in a wart or mole which is why special attention and observation is needed for quick detection and treatment in other to increase survival chances.
Cancerous cells compete with healthy cells for nutrients and other resources in the body and are usually treated through chemotherapy or radiotherapy which helps in killing the cancer cells.
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A quasar is formed when a super massive black hole has enough material around it to fall in it's accretion disk.
Yes, the all living tissues contains the catalase, Catalase protects cellular organelles and tissues from damage by peroxide.
<h3>
Do all living tissues contain catalase?</h3>
Catalase is a common antioxidant enzyme which is present in all living tissues of an organism and it is responsible for the degradation or reduction of hydrogen peroxide to water and molecular oxygen using either iron or manganese as a cofactor.
Liver, potatoes and other living tissues contain the enzyme catalase. This enzyme breaks down hydrogen peroxide which is a harmful by-product of the process of cellular respiration. If it builds up in concentration in the cells, the cells are adversely affected which leads to serious complications in the organisms.
So we can conclude that all living tissues contains the catalase, Catalase protects cellular organelles and tissues from damage by peroxide.
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The first statement, “We never get to see the far side of the moon” is <u>true</u> among all the statements given.
Explanation:
We only see one side of the moon from Earth, which is commonly referred to as the “near” side of the moon. We are able to see this side through our naked eyes due to the sunlight reflecting of the surface of the moon.
However, this is not to say that the far side of the moon does not receive sunlight at all. It does receive, but it’s just that the far side of the moon never faces the Earth and hence we never see it.
Having said that, the other statements are false. The near side itself goes through weeks of darkness, where it is not lit up by the Sun. The moon has its own axis upon which it rotates. And the moon orbits the Earth and one full rotation takes about 28 days.
