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Rzqust [24]
3 years ago
7

Describe the following methods of genetic engineering: gel electrophoresis,

Biology
1 answer:
Sunny_sXe [5.5K]3 years ago
6 0

Gel electrophoresis is a method of genetic analysis which involves seperating segments of DNA based on their size and charge.

It involves cutting DNA with various enzymes, then placing the DNA in an agarose gel. An electrical current is then run through the gel. Because DNA is a polar molecule the DNA segments will travel through the agarose cell as the current is applied. Larger fragments will travel shorter distances than shorter fragments. Two plates with 2 different DNA samples will be conducted and the orientation of the DNA strands will be used to make an analysis by comparing the 2 plates.

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Which of the prey's cells are most likely affected by the poison
AVprozaik [17]

Answer:

Muscle cells are most likely affected by the poison.

7 0
2 years ago
Think about challenges related to marine science which are currently facing society. In coastal and inland communities alike, th
Alex_Xolod [135]

Global challenges related to marine science are as follows:

1. Ocean acidification is a major issue that affects all of the world's ocean industries and has severe negative effects on the environment, society, and the economy. Coordinated government action is required to effectively address this issue.

<h3>What is impact of ocean acidification?</h3>

Ocean acidification will affect the biological, biogeochemical, and ecological aspects of the oceans, and while the effects on the environment, the socio-ecological system, and human dimensions are all still not fully understood, they have the potential to have very dramatic effects. Numerous marine ecosystem services and goods may be impacted directly or indirectly. Industries that rely on these services from the Ocean are impacted.

2. Overfishing:

Overfishing poses a severe threat to the fish in our water, whether it's for the food industry or the aquarium sector. The Food and Agriculture Organization estimates that more than half of the species of marine fish have been totally or overexploited, despite the fact that many of them simply need to remain in the sea because they are not necessary for food security or because they cannot survive in captivity. We are killing entire ecosystems and the food chains that are necessary to keep them healthy by overfishing. Overfishing not only causes the extinction of entire species, but it also directly affects other species in the food chain.

3. Plastic

Between 1.15 and 2.41 million tons of plastic enter the ocean every single year. The Great Pacific Garbage Patch, which is a collection of rubbish in the Pacific Ocean is now three times the size of France. Animals can get tangled in the huge amount of plastic which litter the ocean, and the plastic smothers and destroys coral and sponges. Plastic bags are also often mistaken for food by sea turtles, and they either become trapped or eat the bag which clogs their digestive system. Plastic continuously breaks down resulting in little pieces of “micro-plastic” that are consumed by a variety of marine life, including several species that humans like to catch and eat.

solutions that account for societal needs and wants:

1. Cutting back on carbon emissions.

2. Reducing plastic usage.

3. Making sure the fish you consume is supplied sustainably and ethically.

4. Participating in beach cleanups.

5. Only purchase aquarium fish that were raised in captivity.

6. Supporting elected officials that favor a wholesome atmosphere

7. Contributing to environmental organizations that protect our oceans.

For more information regarding ocean acidification, visit:

brainly.com/question/7604502

#SPJ1

8 0
2 years ago
Which process creates most of the cells in our body? <br> Mitosis<br> Meiosis
allochka39001 [22]

Answer:

meiosis, hope this helped!

Explanation:

7 0
3 years ago
Read 2 more answers
Rocks , soil trees water air and life .How do all the parts affect each other? Give some
IrinaVladis [17]

Explanation:

Answer:

For the complete encyclopedic entry with media resources, visit: http://www.nationalgeographic.org/encyclopedia/weathering/

Weathering describes the breaking down or dissolving of rocks and minerals on the surface of the Earth. Water, ice, acids, salts, plants, animals, and changes in temperature are all agents of weathering.

Once a rock has been broken down, a process called erosion transports the bits of rock and mineral away. No rock on Earth is hard enough to resist the forces of weathering and erosion. Together, these processes carved landmarks such as the Grand Canyon, in the U.S. state of Arizona. This massive canyon is 446 kilometers (277 miles) long, as much as 29 kilometers (18 miles) wide, and 1,600 meters (1 mile) deep.

Weathering and erosion constantly change the rocky landscape of Earth. Weathering wears away exposed surfaces over time. The length of exposure often contributes to how vulnerable a rock is to weathering. Rocks, such as lavas, that are quickly buried beneath other rocks are less vulnerable to weathering and erosion than rocks that are exposed to agents such as wind and water.

For example, certain kinds of air pollution increase the rate of weathering. Burning coal, natural gas, and petroleum releases chemicals such as nitrogen oxide and sulfur dioxide into the atmosphere. When these chemicals combine with sunlight and moisture, they change into acids. They then fall back to Earth as acid rain.

4 0
2 years ago
Which is a type of plankton? A. shark B. squid C. algae D. crab
d1i1m1o1n [39]
Algae because it is a small  organism that the larva state of animals live in and feed on it 

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3 years ago
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