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morpeh [17]
3 years ago
14

When cells divide or multiply, the dna must be copied, or replicated. all known organisms replicate their dna by a method known

as semi-conservative replication, in which each of the two strands of the parent dna becomes part of the daughter dna?
Biology
1 answer:
12345 [234]3 years ago
8 0
This is true. I'm not 100% sure what the question is asking but yeah.
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Describe the Watson and Crick model of DNA structure. How did it fit the data provided by Chargaff and the X-ray diffraction pat
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DNA model given by Watson and Creek in the year of 1953 gave a very detailed study regarding the structure of B DNA which is valid till date and is essentially corroborating with Chargaff's data and Xray diffraction pattern.

<h3><u>Explanation:</u></h3>

The DNA is the most common nucleic acid found in the living organisms as a genetic material. As stated by Watson and Creek, this DNA contains a double helical structure with two sugar phosphate backbones and the nitrogen bases getting projected from it inwards. The backbones are formed of ribose sugar and phosphate and joined together with a phosphodiester bond. The ribose sugar is attached to phosphates at its 3' and 5' Carbon atoms. The nitrogen bases found in DNA are Adenine, Guanine, Thymine and Cytosine. The Adenine has two hydrogen bonds with thymine and guanine has 3 hydrogen bonds with cytosine.

Each full turn of a helix is 34A and each base pair is 3.4A apart. The distance between two strands of DNA is 20A.

Chargaff's rule regarding the equal amount of adenine and thymine as well as guanine and cytosine is matching with this structure. All the other rules also do match with this DNA structure.

3 0
3 years ago
Large bodies of water help to stabilize air temperatures. An ice cube cools water by adding coldness. Evaporative cooling preven
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Answer:

Water is slower to heat than most materials.

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There is a physical property called "specific heat". This property determines the amount of temperature necessary to change 1ºC in the temperature of the materials. The higher the specific heat of the material, the slower it will heat up.

The water has an extremely high specific heat, which means that it will slowly heat up to an extremely high temperature. The specific heat of the water is greater than most materials and this explains why high variations and external temperature changes almost do not cause changes in the water of the picisnas, for example.

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Discuss the livestock and poultry production​
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They are designed to help farmers of varying experience levels profitably and sustainably raise and sell meat, eggs, milk, and fiber with an emphasis on pasture-based systems.
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Why do sea turtles lay eggs in a terrestrial environment?
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For the eggs to survive and have a chance of hatching, sea turtles must lay their eggs on sandy beaches. As they are developing, the embryos breathe air through a membrane in the eggs, and so they cannot survive if they are continuously covered with water.

Explanation:

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Which matter exists in the liquid state at room temperature?
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B) honey

A shirt is a solid, and helium is a gas at room temperature. A nebula is... not an object.

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