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kupik [55]
3 years ago
12

DNA replication is achieved by a process called ____________ replication, meaning that each new double helix includes an old str

and from the parent DNA and a new strand.
Biology
1 answer:
creativ13 [48]3 years ago
3 0

Answer:Semi- Conservative

Explanation: semi conservative model was proposed by Watson and Crick's.

Semi-conservative replication takes place before mitosis during replication.

The two original DNA strands split into two each forming a template for the new copies. The new copies have it codons pair u with the old template this implies that the new synthesis DNA strand consists of both the old DNA and the new strand with there base pairs pairing up.

semi conservative replication has two stages

Stage 1- This when the old DNA strand split and each strand serving as a template for the new strand. and the New strand forms a doubles helix DNA strand containing both old and new DNA strands

Stage2- This occur when the new DNA strand(called hybrid) splits from the old strand and the join with another newly synthesis DNA strand.

We also have the conservative DNA replication this doesn't allow for splitting of Old DNA strand,the entire DNA strand is used as a template for the new ones. The new strand produce during cell division also consists of a complete double helix strand.

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Answer:

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Explanation:

This is the role of the reactions in the carbon cycle.

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Explain how water's cohesive and adhesive properties are a result of its bonding among the atoms
vladimir1956 [14]

Water is a unique molecule which contains inter-molecular forces like vandar wall's forces and hydrogen bonding that results in extremely strong bonding forces among water molecules.

Cohesion and adhesion are the properties of water which refer to the fact that water molecules are not only very strongly attracted to water molecules but also to other polar molecules of any type.

This is the cohesive nature of the water which makes water a water drop and it is the adhesive nature of water due to which water takes the shape and available space in a glass or jar of water .

How these properties are a result of bonding between atoms?

Cohesive properties:

  • We are well aware of the fact that water is composed of one atom of oxygen and two atoms of Hydrogen.
  • The two hydrogen atoms align themselves in such a way that oxygen is in middle of them. Due to great electronegativity difference Oxygen gets a partial negative charge while Hydrogen atoms get partial positive charges.
  • Now one oxygen atom of one one water molecule attracts the partial positive charged hydrogen atom of another water molecule, and this attraction causes the bonding. This type of inter-molecular forces of atom gives water cohesive properties.

Adhesive properties:

  • If we talk about adhesive properties through which water is attracted to other materials of polar nature, these adhesive properties are also due to same nature of bonding.
  • Any polar compounds can easily get bonded with water due to polar nature of water molecules. You can see the attached figure for better understanding of bonding properties of water.

Hope it help!


6 0
4 years ago
Plx help !!
vazorg [7]
I believe that the government should have limited access to people's genetic codes as they might be useful in solving crime or figuring out someone's identity and relatives
8 0
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