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KatRina [158]
3 years ago
9

What class of organic molecules does cholesterol belong to?

Biology
1 answer:
Evgen [1.6K]3 years ago
5 0
It belongs to "lipid".Group of macromolecules and is a member of a group of sterols. Hope it helps! God bless you :)
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The cell uses oxygen to break down glucose during cellular respiration! True or false
Arturiano [62]
Aerobic cellular respiration uses O2 to break down glucose molecules into Adenonsine Triphosphate. So yes?
6 0
3 years ago
Read 2 more answers
Leigh's disease is a mitochondrially inherited disease with symptoms that include seizures, fatigue, impaired reflexes, breathin
Ahat [919]

About the question:

You will find the pedigree in the attached files

Answer:

  • individual 4 → Affected woman → Black circle
  • individual 5 → Affected woman or man → Black circle or square
  • individual 7 → Healthy woman → Empty circle
  • individual 10 → Affected boy → Black Square

Explanation:      

Mitochondrial inheritance is the transmission of a disease or a trait from the maternal line.

<em>Most of the DNI is in the nucleus, but there is also DNI in mitochondria. Sperm cells hardly transfer mitochondrial genes to the progeny</em>, so mitochondrial DNI is mostly inherited from the maternal side. If there exists any mutation in this mitochondrial DNI, the whole progeny of the mutated woman will be affected, as they will get the mother genotype carrying the mutation. On the contrary, if an affected man is carrying a mutation in mitochondrial DNI, non of their descendants will get the disease.

Before answering the question, let us remember the pedigree symbols.

  • Squares represent Males/Men
  • Circles represent Females/Women
  • Empty symbols represent healthy/non-affected individuals
  • Solid black symbols represent sick/affected individuals

In the exposed pedigree, we can see that the mother is affected by the disease (individual number 2), so all her children are also affected (individuals 4, 5, and 6) because the <em>disease is mitochondrially inherited</em>.

Individual 3 is a healthy man, so individual 4 must be an affected woman (Black circle). As she is the one affected, then all her children will also be affected. This couple <em>had one boy and two girls</em>. Individuals 8 and 9 are girls (circle), so individual 10 must be the affected boy (black square).  

On the other hand, individual 6 is an affected man (black square), son of individuals 1 and 2. This man couples with a woman, and they have all healthy children. So this woman (individual 7) must be healthy. Even though the man is affected, all their children are not because their mother (7) is not. Remember that sperm cells do not transmit the mitochondrial genes to the progeny.      

And finally, individual number 5 might be either a man or a woman. In any case, this person is also affected by Leigh's disease.  

5 0
3 years ago
How does h2o and co2 get transported into the chloroplast?
mixas84 [53]

Answer:

<h2>The chloroplast is involved in both stages of photosynthesis. The light reactions take place in the thylakoid. There, water (H2O) is oxidized, and oxygen (O2) is released. ... In these reactions, the energy from ATP and NADPH is used to fix carbon dioxide (CO2).</h2>

Explanation:

<h2>hope this helps you</h2><h2>Mark my answer as brainalist</h2>
5 0
3 years ago
A cotton farmer applies a new insecticide against the boll weevil to his crop for several years. at first, the treatment was suc
romanna [79]
Yes, it is possible that evolution occurs in this case.

At first, the new insecticide is effective against the boll weevil. Spraying the insecticide will kill the boll weevil in a way. The insecticide might attack boll weevil enzyme or any part of its organs.<span>
But some of them might have a mutation that renders the insecticide ineffective. The mutation probably happens to DNA that code the enzyme or protein that targeted by the insecticide, makes the insecticide completely ineffective.
The next spray will kill all old organism, leaving the new resistant organism in less competition area. This will allow the resistant organism to grow fast and eventually replace all the old organism in the area.</span>
4 0
3 years ago
DNA replication results in two separate DNA molecules. How are the DNA molecules at the end of the process related to the DNA mo
kondor19780726 [428]
At the end of the result concludes RNA (Copied exact genes off of DNA)
8 0
3 years ago
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