3 years ago

I need help on this question please!

Biology

1 answer:

kirill115 [55]3 years ago

4 0

Explanation:

single stranded

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Which region of your brainstem plays a role in arousing you to a state of alertness when, for example, you accidentally stumble

torisob [31]

The region of the brainstem that plays a role in arousing you to a state of alertness would be the reticular formation. It is responsible in regulating the sleep cycles and in detecting sensory conditions. It consists of more than 100 neural network that are for various functions.

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3 years ago

Label the figure below. Word bank: leading strand, lagging strand, DNA

Natalija [7]

Answer:

DNA can replicate itself because its two strands are complementary. This means that one strand can be used as a template to make the other strand. It happens right before cell division via mitosis or meiosis so that each new daughter cell can have a complete genome.

Before replication can start, the double strands of DNA need to separate from each other. An enzyme called DNA helicase breaks the hydrogen bonds that connect the two strands, allowing them to come apart.

The point where this unzipping starts is called an origin point. Eukaryotic DNA can have more than one origin point, but prokaryotes can only have one.

The points where DNA is currently unwinding are called replication forks.

A comparison of eukaryotic and prokaryotic DNA replication

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