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andrew-mc [135]
3 years ago
7

What is the role of DNA helicase during DNA replication?

Biology
2 answers:
nadya68 [22]3 years ago
3 0
Helicase "unzips" the two strands of DNA. During DNA replication.
Mama L [17]3 years ago
3 0

Answer:

Helicase enzyme melts the DNA double helix and forms single stranded DNA strands.

Explanation:

Helicases are ATP dependent enzymes that bind to the DNA at the origin of replication. Helicases move along the DNA and use the energy of ATP to breakdown the hydrogen bonds between complementary base pairs that otherwise hold the two DNA strands together.  

Breaking of hydrogen bonds releases two DNA strands from each other. These single-stranded DNA molecules then serve as the template for DNA replication.  

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wolverine [178]

Answer:

50%

Explanation:

This question involves a single gene with two alleles W and w in puppies. According to the question, the genotype of the parent organisms are Ww. In a cross between the two parents i.e. Ww × Ww, the following gametes will be produced by each parent: W and w.

Using these gametes in a punnet square (see attached image), the following genotype of offsprings will be produced: WW, Ww, Ww, ww. Hence, based on this question, the percentage of puppies that would have the same genotype as the parents, Ww are 1/2 × 100% = 50%.

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In light of the all or none law of muscle contraction, how can you explain the graded response?
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Read more about vitamins:

brainly.com/question/24268138

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1 year ago
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