Answer:
The correct answer is -
1. right-handed
2. right-handed
3. positive
4. left-handed
5. negative
6. negative
Explanation:
In a circular bacterial chromosome, the structure of DNA is a right-handed double helix In a circular bacterial chromosome.
If DNA is twisted in the right-handed direction, it becomes overwound. Overwinding results in positive supercoiling takes place. If DNA is twisted in the left handd direction, it becomes underwound. Underwinding results in negative supercoiling.
f. One effect negative supercoiling in bacterial chromosomes is to promote separation of the two strands of DNA in the double helix
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<span>Two types of treatments: type of seed and fire.
Type of seeds: 1. Known seed type that requires fire. 2. Known seed that is killed by far. 3. Experimental/unknown seed.
Fire treatments: 1. No fire. 2. Fire. </span>
Answer:
Human activities have a tremendous impact on the carbon cycle. Burning fossil fuels, changing land use, and using limestone to make concrete all transfer significant quantities of carbon into the atmosphere. ... This extra carbon dioxide is lowering the ocean's pH, through a process called ocean acidification.
Explanation:
Answer:
Carbon cycle
Explanation:
Sunlight, photosynthesis and respiration is included in the carbon cycle and oxygen cycle. Oxygen cycle: The oxygen cycle is the cycle where in animal respiration atmospheric oxygen is converted to carbon dioxide and in photosynthesis it is regenerated by green plants.
Answer:
We need more information to answer.
Explanation:
