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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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What part of radioactive element is unstable?
Sedaia [141]

Answer: B. <em>The nucleus</em>

Explanation:

"Their nuclei are unstable, so they break down, or decay, and emit radiation."

{please give me brainliest :)}

5 0
3 years ago
Science 6th grade digital INB- You dont know what parts of the ground are safe and what parts are thin crusts of soil covering f
OLga [1]

Answer:

Fire detecting Scanner.

Explanation:

Fire detecting Scanner is a system which has the ability to scan the area and tells the changes occurs in the fire inside the earth crust. This scanner collect all information about the area on the basis of which we can take steps to avoid the damage caused by the fire. With the help of this scanner we can tell that which part is safe and which part of the area is dangerous for people.

8 0
3 years ago
are narrow-diameter, unmyelinated sensory nerve fibers that transmit signals from pleasant touch. A. P tactile efferents B. C ta
KIM [24]

Answer:

Option E, C tactile (CT) afferent

Explanation:

Whenever a slow moving gentle touch experienced, the response is due to the nerve fibers called C-Tactile afferents (CTs).  

C-Tactile afferents (CTs) are unmyelinated mechanoreceptors  of low threshold and low conduction velocities.  

In humans, CT neurons are found in hairy skin.  

The pleasant feeling observed during a slow gentle touch is due to the interaction of  

CT neurons project to the insular cortex in the brain

Hence, option E is correct

4 0
3 years ago
How do interactions help dandelions to survive?
Sunny_sXe [5.5K]

Answer:

Interactions such as picking and blowing dandelions before they have became a flower helps to spread their seeds and letting more of them germinate. In another context, talking to flowers in general help because when you breathe out Carbon Dioxide, flowers and plants absorb it as it is what they need to grow.

4 0
3 years ago
After a major forest fire, the process of succession ultimately causes an ecosystem to?
Ad libitum [116K]

Answer: The ecosystem becomes more stable and diverse

Explanation:

4 0
3 years ago
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