Answer: topoisomerases
Explanation:
Topoisomerases are enzymes that help overwind or underwind DNA. DNA double helix has high tedency to get winded again because of its structural characeristics.
During replication and transcription of DNA, DNA gets overwound in front of a replication fork. This enzyme stops the double helix of DNA from becoming too tightly bound in front of the replication fork as the DNA opens.
The given demonstartion shows the action of topoisomerases as it shows unwinding of of supercoiled strands of pipe (DNA), which is don eby topoisomerases in the DNA replication process.
Hence, the correct answer is topoisomerases.
Answer:
D. abiotic factors
Explanation:
Some examples of abiotic factors are water, soil, air, sunlight, temperature, and minerals.
The answer is D.
DNA must be turned into RNA in order to leave the nucleus.
Good luck! :)
Answer:
Five types of evidence for evolution are discussed in this section: ancient organism remains, fossil layers, similarities among organisms alive today, similarities in DNA, and similarities of embryos. Another important type of evidence that Darwin studied and that is still studied and used today is artificial selection, or breeding.
Explanation:
Answer:
Sugar and nutrients.
Explanation:
Culture media are chemical compositions created in the laboratory that provide all the necessary resources for the creation of microorganisms in vitro. In short, the culture media provide adequate food for microorganisms to grow and be analyzed and studied.
The culture media can have a liquid, solid or semi-solid consistency, however it is important that regardless of cosistence, they all have in their composition sugars (which will provide carbon and energy for the microorganism) and nutrient (so that they grow nourished and strong).