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Vlada [557]
3 years ago
10

Mitochondria have their own DNA. What might that mean about their origin in our cells?

Biology
2 answers:
bogdanovich [222]3 years ago
7 0

Answer:

Mitochondria are structures within cells that convert the energy from food into a form that cells can use. Mitochondrial DNA contains 37 genes, all of which are essential for normal mitochondrial function. Thirteen of these genes provide instructions for making enzymes involved in oxidative phosphorylation.

Explanation:

rjkz [21]3 years ago
3 0

Answer:

They were individual organisms that were assimilated into a larger cell.

Explanation:

It's how simple cells became complex cells. Also, the cell and the mitochondria share a symbiotic relationship: the cell provides a safe space for the mitochondria to live, and the mitochondria provide energy to the cell in the form of ATP.

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The data obtained from the meselson–stahl experiment after one generation of replication eliminated the dispersive model of dna
Sedaia [141]
<h2>Given statement is false</h2>

Explanation:

According to dispersive model of DNA replication,DNA molecules are hybrids of parental and daughter DNA;In this model each individual strand is a combination of original and new DNA

Meselson and Stahl did an experiment on DNA replication using E.coli bacteria

  • E.coli was grown in a medium containing heavy isotope of nitrogen,bacteria took up the nitrogen and used to synthesize new biological molecules,including DNA
  • It was grown for many generations,the nitrogenous bases of the bacteria's DNA were all labelled with heavy nitrogen
  • Bacteria were then switched to light nitrogen isotope and allowed to grow for several generations
  • They then measured the density of the DNA using density gradient centrifugation
  • This method separates molecules such as DNA into bands by spinning them at high speeds in the presence of another molecule, such as cesium chloride
  • Each DNA produced two DNA molecules each with one new strand and one old strand called semi conservative replication(half of the parental DNA conserved in daughter DNA)
  • Each DNA strand act as a template for synthesis of new strand
  • Hence,dispersive model of DNA was eliminated and semi-conservative model of DNA replication was proved by the above experiment

3 0
3 years ago
Read 2 more answers
Please help very ez, will brainly, 5 star, and thanks
nalin [4]

Answer:

B

Explanation:

If the traits are favorable this means nature would select it.

3 0
3 years ago
Why is innate host resistance a type of nonspecific immune response?.
ASHA 777 [7]

These defenses are described as nonspecific because they do not target any specific pathogen; rather, they defend against a wide range of potential pathogens.

<h3>Is innate immunity nonspecific resistance?</h3>

The innate immune system provides this kind of nonspecific protection through a number of defense mechanisms, which include physical barriers such as the skin, chemical barriers such as antimicrobial proteins that harm or destroy invaders, and cells that attack foreign cells and body cells harbouring infectious agents.

Thus,  they do not target any specific pathogen; rather, they defend against a wide range of potential pathogens.

To learn more about nonspecific resistance click here:

brainly.com/question/14706824

#SPJ1

6 0
2 years ago
What steps are involved in the production of hydroelectric power?
Alina [70]
A is the right answer
5 0
2 years ago
Read 2 more answers
On avrage how many teeth can an alligator have?
Charra [1.4K]
<h2>Hello!</h2>

The answer is:

At the same time from 74 to 80 teeth.

Trought their entire life, an average of 3000 teeth.

<h2>Why?</h2>

Alligators are the semi-aquatic reptiles that live in mixed waters (rivers, canals, lakes) eating turtles, mammals, birds, frogs, snails, and other animals. Alligators are known as dinosaurs cousins since they have similar characteristics. On average, at the same time, an alligator can have about 80 teeth in its mouth when they lose a tooth, it's replaced by a new one, it happens till they die, having an average of 3000 teeth.

Have a nice day!

4 0
3 years ago
Read 2 more answers
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