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Degger [83]
3 years ago
6

Explain how DNA polymerase "proofreads" a new DNA strand

Biology
1 answer:
dimulka [17.4K]3 years ago
3 0
 <span>In bacteria, DNA polymerase adds an incorrect base to a growing strand of DNA about once in every 100 000 bases added. The result is a mismatch such as the pairing of A with C. 


</span>
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Water molecules can stick to other water molecules through which type of
pentagon [3]

Answer:

Hydrogen Bonds

Explanation:

Hydrogen bonds allow for hydrogens to bond to each other. They are the strongest type of intermolecular bonds.

Hydrogen bonds are dipole-dipole, and when water molecules are close to each other, the hydrogen bonds form between the hydrogen atoms.

8 0
3 years ago
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What is the job of an enzyme
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3 years ago
Which structure separates an animal cell from its surrounding environment? (1 point) 1 Golgi apparatus 2 plasma membrane 3 nucle
Stolb23 [73]

Answer:

2) plasma membrane

Explanation:

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3 years ago
In humans, without considering the variation provided by crossing over, how much will two siblings from one set of parents vary
Mars2501 [29]

Answer:

Random segregation of homologous chromosomes makes the two siblings differ from each other for 0-23 chromosomes.

Explanation:

Sexual reproduction adds genetic variations in the progeny by crossing over, independent segregation of homologous chromosomes and random fusion of gametes. Without crossing over, independent segregation of homologous chromosomes towards opposite poles during anaphase I of meiosis may result in two siblings to vary from each other for 0-23 chromosomes.

There is an equal probability of each of the two siblings to get a chromosome from mother or father. Hence, irrespective of the variations provided by crossing over, random segregation of homologous chromosomes makes the two siblings differ from each other for 0-23 chromosomes.

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