95% of plastics in the ocean are

What is mitosis? What is the importance of mitosis?

I am Lyosha [343]

Mitosis is important because it is essential for growth and repair in the body. Mitosis happens when a parent cell divides, creating two identical copies, referred to as daughter cells. During this process, it is essential that the daughter cells are exactly the same with the same copies of DNA.

4 0

4 years ago

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What is the largest type of plant in the world that does not have a wooden stem?

goldenfox [79]

The <span>sunflower is considered to be the largest plant without a wooden stem. The sunflower will usually grow more than 120 inches. </span>. It have a hairy stem but it is not wooden, is soft line the plant vines. It tilt during daytime because it usually face the sun.

6 0

3 years ago

(Identify) the major types of water pollutants. Suggest ways to reduce the

irakobra [83]

Answer:

Refer below.

Explanation:

Pathogens:We can lessen sewage wastewater by utilizing elective techniques for treatment like drying to create pellets utilized as characteristic.

Organic Matter:We can decrease natural waste by actualizing strategies, for example, treating the soil which can support great microbes and supplement development for horticultural use.

Organic chemicals: We can diminish the utilization of hurtful pesticides and manures and use options, for example, plants to repulse creepy crawlies, for example planting marigolds and basil with vegetables, since they are characteristic repellants. We can utilize dried waste from sewage plants as a more secure manure, which assists with decreasing pathogen contamination at the same time.

Heavy metals:We can line landfills, decrease reject that goes there by utilizing just recyclable materials, and utilize elective, greener cleaning specialists at home, for example, vinegar and lemon.

Physical agents: We can all the more intensely control mechanical and power plants. They ought to be disallowed from releasing warmed wastewater from their plants. Cooling tanks could be utilized to let the temperature of the water normally lessen, and an arrangement of filtration through penetrable and non porous stone, sand, and rock could be utilized to control the stream when the water is in the long run discharged. The cooled water could be sent to be utilized underway of elective oil, similar to that got from green growth, or utilized for arranging which speaks to 1/3 of water utilization in the normal American family unit. Also, elective uses for the high temp water could be discovered, such as utilizing to warm the structure and it's pipes framework through an arrangement of radiators.

8 0

3 years ago

In a certain breed of plants, dark green is determined by the dominant gene 'G' and light green is determined by the recessive g

stealth61 [152]

Answer:

The answer is 300.

Explanation:

When we cross GG and gg, 100% of the offspring will be heterozygous. If the heterozygotes show 75% penetrance meaning that there is a 75% probability that the plant that has the G gene will actually show it in it's phenotype.

So that means that 75% of the offspring should have dark green color, which means that 300 plants will have the expected phenotype and 100 will not.

I hope this answer helps.

7 0

3 years ago

When a solution of cesium chloride (CsCl) is subjected to high-speed centrifugation, a stable density gradient is formed. Mesels

DochEvi [55]

Answer:

Test tube 1: b. DNA from E. coli cells grown in 14N

test tube 2: e. DNA containing one strand of 15N-DNA and one strand of 14N-DNA

test tube 3: a. DNA from E. coli cells grown in 15N

test tube 4: c. A 1:1 mixture of DNA from cells grown in 14N and cells grown in 15N

test tube 5: d. A 1:1 mixture of DNA from cells grown in 14N and 15N, heated (to disrupt hydrogen bonds) and cooled (to allow reannealing).

Explanation:

Meselson and Strahl had used CsCl gradient centrifugation to demonstrate the semi-conservative nature of DNA replication. In a CsCl density gradient centrifugation, from a pool of light, heavy and intermediate size DNA, the heaviest one would go and settle towards the bottom of the test tube, while the lightest one would be at the top and the intermediate one would find a place in between the heavy and the lighter one.

If the DNA is labelled only with 15N, then the DNA is heavier in size and the DNA would settle towards the bottom of the tube during density gradient centrifugation.

If the DNA is labelled only with 14N, then the DNA is lighter in size and the DNA would settle towards the top of the tube during density gradient centrifugation.

If one strand of the DNA is labelled with 14N while the other one is labelled with 15N, then the DNA is intermediate of these two in size and the DNA would settle towards the middle of the tube during density gradient centrifugation.

but whenever we have a equimolar or equal ratio mixture of DNA grown in 14N and 15N both, then we expect two bands, one lighter corresponding to the size and position of 14N labelling, while the other one is heavier and corresponds to size and position of 15N labelling.

However, whenever we have a equimolar or equal ratio mixture of DNA grown in 14N and 15N both which is heated and cooled both, then we expect three bands because of denaturation and reannealing of DNA strands, which would lead to the annealing of the lighter strand with heavier starnd as well instead of the lighter strand and heavier strand alone in the pool and hence we would have three bands, one lighter corresponding to the density and position of 14N labelling, the second one that is heavier and corresponds to density and position of 15N labelling, and the third one which is the intermediate between these two densities.

6 0

4 years ago