during dna replication, which enzyme is involved in unwinding the parental dna double helix?

During DNA replication, the enzyme DNA helicase is involved in unwinding the parental DNA double helix.

Explanation:

DNA replication is the process in which DNA is copied during the cell division cycle.  During replication, the complementary strands of the original double helix DNA are separated and one of the two strands in the original molecule is saved in the new DNA molecule. Thus the new DNA molecule is made of an original strand and a newly synthesized strand. DNA has four nitrogenous bases called adenine (A), thymine (T), cytosine (C) and guanine (G) . During DNA  replication, an enzyme known as DNA helicase breaks the hydrogen bonding between the base pairs, adenine with thymine and cytosine with guanine. This unwinds the parental DNA double helix into two separate strands and thus creates a Y shaped replication fork, where the template for replication begins.

1. RNA

2. Cytosine and guanine

3. RNA

4. Replication

5. Unwinding the double helix

6. DNA polymerase

7. Identical

8. Repair the DNA

9. Changes in nucleotides of a DNA molecule that affect the genetic message

10. The gene for beta-galactosidase turns off.

11. p53

12. A part of DNA that does not code for a functional protein

13. Proteins

14. Transfer RNA

15. The making of an RNA molecule from a DNA strand by pairing of bases of RNA nucleotides with the complementary bases in DNA

16. 3

17. Tertiary

18. Enzymes

19. The reaction slows down.

20. The active site of an enzyme

21. 60%

22. Conserved energy

23. different

24. Gene expression

I hope that this helps you !

1. RNA

2. Cytosine and guanine

3. RNA

4. Replication

5. Unwinding the double helix

6. DNA polymerase

7. Identical

8. Repair the DNA

9. Changes in nucleotides of a DNA molecule that affect the genetic message

10. The gene for beta-galactosidase turns off.

11. p53

12. A part of DNA that does not code for a functional protein

13. Proteins

14. Transfer RNA

15. The making of an RNA molecule from a DNA strand by pairing of bases of RNA nucleotides with the complementary bases in DNA

16. 3

17. Tertiary

18. Enzymes

19. The reaction slows down.

20. The active site of an enzyme

21. 60%

22. Conserved energy

23. different

24. Gene expression

I hope that this helps you !

The answers would be:

1. c) translation

2. c) DNA is cut into pieces...

3. c) it enters the cytoplasm towards the ribosome

4. b) it is put together using base pairing rules

5.

rRNA - involved in the fuctioning of the ribosome sub-units.

tRNA - transports amino acids to the ribosome to build the protein.

mRNA - Carries instruction for protein synthesis from the nucleus to the ribosome

If you'd like to know more about the question, read on:

Translation is the end point of the protein sythesis process. This is where transfer RNA (tRNA) bring in the amino acids that pair up with the messenger RNA (mRNA) code created from the DNA of the nucleus. This occurs in the ribosome.

DNA is cut into pieces in the process of DNA cloning not replication. During replication, DNA first unwinds and unzips with the help of an enzyme called helicase. This creates a fork in between the double stranded DNA, exposing each strand. Each of these strands serve as the template for the new molecule, specific to the code. The DNA polymerase helps by adding complementary bases to create the mRNA, which is the transcription process.

The mRNA is patterned based on the DNA template it was created from. It is put together using base pairing rules.  There are only 4 bases and this includes guanine, cytosine, adenine and thymine. Similarly, mRNA have 4 bases as well, but instead of thymine, it has uracil.

Guanine only pairs with cytosine and vice versa. Thymine pairs with adenine, and adenine pairs with uracil (on RNA).

There are different types of RNA.

mRNA is known as the messenger RNA. As the name it delivers the code to the ribosomes, which will tell the cell what amino acids it needs to make specific to the DNA template it copied from the nucleus.

tRNA is known as the transfer RNA. Its function is to bring in the amino acids to the ribosome. tRNA contain 3 specific bases that code for a specific amino acid. It matches up with the mRNA that came from the nucleus.

Before tRNA come in, mRNA interacts first with  rRNA or ribosomal RNA. This specific RNA is found in the ribosome. When mRNA enters the ribosome and binds with the rRNA, their interaction triggers tRNA to approach.

The answers would be:

1. c) translation

2. c) DNA is cut into pieces...

3. c) it enters the cytoplasm towards the ribosome

4. b) it is put together using base pairing rules

5.

rRNA - involved in the fuctioning of the ribosome sub-units.

tRNA - transports amino acids to the ribosome to build the protein.

mRNA - Carries instruction for protein synthesis from the nucleus to the ribosome

If you'd like to know more about the question, read on:

Translation is the end point of the protein sythesis process. This is where transfer RNA (tRNA) bring in the amino acids that pair up with the messenger RNA (mRNA) code created from the DNA of the nucleus. This occurs in the ribosome.

DNA is cut into pieces in the process of DNA cloning not replication. During replication, DNA first unwinds and unzips with the help of an enzyme called helicase. This creates a fork in between the double stranded DNA, exposing each strand. Each of these strands serve as the template for the new molecule, specific to the code. The DNA polymerase helps by adding complementary bases to create the mRNA, which is the transcription process.

The mRNA is patterned based on the DNA template it was created from. It is put together using base pairing rules.  There are only 4 bases and this includes guanine, cytosine, adenine and thymine. Similarly, mRNA have 4 bases as well, but instead of thymine, it has uracil.

Guanine only pairs with cytosine and vice versa. Thymine pairs with adenine, and adenine pairs with uracil (on RNA).

There are different types of RNA.

mRNA is known as the messenger RNA. As the name it delivers the code to the ribosomes, which will tell the cell what amino acids it needs to make specific to the DNA template it copied from the nucleus.

tRNA is known as the transfer RNA. Its function is to bring in the amino acids to the ribosome. tRNA contain 3 specific bases that code for a specific amino acid. It matches up with the mRNA that came from the nucleus.

Before tRNA come in, mRNA interacts first with  rRNA or ribosomal RNA. This specific RNA is found in the ribosome. When mRNA enters the ribosome and binds with the rRNA, their interaction triggers tRNA to approach.

Leslie argues that an organism called a Euglena is a plant because it is eukaryotic, has a nucleus, makes its own food, and is unicellular. Where is Leslie's error? Plants do not make their own food..

The Parker probe.

Explaination:

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