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Ad libitum [116K]
3 years ago
14

What is the term used to describe the twisted ladder shape of a DNA molecule

Biology
2 answers:
gavmur [86]3 years ago
8 0
It’s called a Double Helix and it’s made up of three components: sugar, phosphate, and base





Nastasia [14]3 years ago
3 0

Answer: double helix

Explanation: The double helix of DNA is, like its name implies, in the shape of a helix which is essentially a three dimensional spiral. The double comes from the fact that the helix is made of two long strands of DNA that are intertwined—sort of like a twisted ladder.

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If an animal cell has 18 chromosomes and undergoes mitosis, how many chromosomes would each daughter cell have? if an animal cel
andrew11 [14]
Mitosis (also known as cellular division) is just copying of cells. So the answer would be 18.If the question were about meiosis (sexual division), then the answer would be 9, because that would make 4 daughter cells, each encompassing half the original number of chromosomes (18).
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3 years ago
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What are the inputs and outputs of celluar respiration?
melomori [17]

Answer:

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2 years ago
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External respiration involves The exchange of O2 and CO2 between the lungs and the environment The exchange of wastes through th
Ganezh [65]
External respiration (correct answer) involves the exchange of oxygen and carbon dioxide within the environment.

The exchange of wastes through the skin is just called excretion by sweating. 

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The exchange of oxygen and carbon dioxide within the cell is called cellular respiration and involves carrying oxygen from the blood to the cell then the cell uses it as the final electron acceptor in the electron transport chain. The metabolic wastes of the cell, primarily carbon dioxide, goes now to the bloodstream to be exchanged for oxygen in the lungs.
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3 years ago
What is the effect of the type of food available on the frequency of different types of bird beaks?
Yakvenalex [24]

Answer:

on bird beaks?

Explanation:

I do know that the bird's beaks that they are born with will in time evolutionize their beaks size and strength to prey on the type of fish for food over time.

Hope I'm making sense...good luck.

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Example of active immunity
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Example of natural active immunity is fighting off cold and artifical active immunity is building up a resistance to a disease due to immunization and allergic reaction is an response to antigen resulting from active immunity

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