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Oxana [17]
3 years ago
6

Chargaffs tule states

Biology
1 answer:
trapecia [35]3 years ago
6 0

Explanation:

the answer is c because g and t is equal and a an c is equal

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Will mark brainliest that has best answer!!!
ratelena [41]

Answer:

Switching to sustainable energy sources such as solar power, hydroelectric power and wind power can reduce the amount of fossil fuels being used up. Fossil fuels are natural resources from the environment, but when burned the waste product of it is released into the environment and can potentialy affect other natural resources. Switching to a renewable energy source can help conserve natural resources. Renewable energy sources can be used to harness the energy we need without producing harmful products that affect the environment and it's resources.

6 0
2 years ago
Describe the key features of the Watson-Crick model for DNA structure.
vagabundo [1.1K]

Answer:

Watson and Crick proposed the double helical model of DNA.

Explanation:

- This model says that DNA exist as double helix. It has two polynucelotide strands running in opposite direction i.e the strands are anti-parallel.

- Each polynucleotide strand is made up of several nucleotide liknked together by phophodiester bonds.

- The two strands are not coiled upon each other but the double strand is coiled upon itself around a common axis like the spiral stair case. Here base pairs forms the stairs and backbone of two strands form railing. Back bone contains sugar and phosphate.

- The base pairing is specific, adenine always pairs with thymine and guanine always pairs with cytosine. Thus if we see any base pair, it consists of one purine and one pyrimidine.

- The two strands of DNA thus show complementary base pairing.

- The strands are held together because of hydrogen bonding between the bases in opposite strand.

- One full helical turn involves ten base pairs and the base pairs are stacked  3.4 A apart.

- This form is called as B-form of DNA.

5 0
3 years ago
Beetles are typically the first insects present on human remains.<br><br> True<br> False
Ivan
I believe it would be false. Termites are generally the first on human remains. I could be wrong though.
5 0
3 years ago
Read 2 more answers
How do the circulatory and respiratory systems have to do with endurance in running?
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The red blood cels are pushed through both systems and works as a avocet to the send signals that the heart is overworked and cant push enough blood to the need breathing
3 0
3 years ago
What is produced by the process of meiosis?
den301095 [7]

Answer:

Meiosis is a type of cell division that reduces the number of chromosomes in the parent cell by half and produces four gamete cells. This process is required to produce egg and sperm cells for reproduction. So basically saying, C is the right answer.

Explanation:

7 0
2 years ago
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