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The structure of RNA is different from DNA because it contains the sugar deoxyride?
Wiki User
∙ 14y ago
RNA contains the sugar ribose in its sugar phosphate backbone while DNA contains deoxyribose in its sugar phosphate backbone. Deoxyribose differs from ribose in that deoxyribose lacks a hydroxyl group (OH) in its 2' position while ribose does not. Also, RNA contains the nucleotide Uracil and DNA contains the nucleotide Thymine. Uracil is just a methylated thymine, the importance of this difference is that the nucleotide Cytosine can easily convert to Uracil while it can't convert to Thymine. This helps to maintain the integrity of the information encoded by DNA and also makes for easier repair in DNA if an error is encountered during replication. Lastly, DNA is a double helix of two strands oriented in a right hand twisted fashion while RNA is a single stranded molecule that is transcribed from DNA.
Wiki User
∙ 14y ago
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Why the elements are different?
Because each chemical element has a different atomic structure and contain a different number of protons and electrons.
Distinguish between homologous structures and analogous structures?
Homologous structures have the internal structure, but different functions. For example the human arm, horse foreleg, bird wing, and whale flipper have similar internal skeletal structure, but different external structure because of their different functions. Analogous structures have similar external structure because of similar functions, but dissimilar internal structure. An example of analogous structures would be the wings of an insect and a bird.
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Both ethene and ethane contain two carbons. Ethene has a double bond between its two carbons while ethane has a single bond. Because of this, ethane contains six hydrogen atoms, but ethene only contains four.
Why does cytochrome c absorb uv and visible light?
DNA absorbs UV light because of the aromatic rings of purines and pirimidines in its structure. DNA absorbs UV light because of the aromatic rings of purines and pirimidines in its structure.
Suggest a reason for the great variability seen in the structure of pollen grains?
because of the different types of flowers
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Because the leaf structure do not have the ability to store the starch molecules
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because it contains oxidative enzymes
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It makes the bone structure stronger because it contains calcium
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Their class structure is different because they have commoners
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because they both have different radius ratio so they have different structure. radius ratio=radius of cations/ radius of anions
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Because they have different properties.
What is compound and molecule?
A compound is a molecule that contains at lest two different elements. A compound is a molecule because it also contains two or more different atoms.
What cells perform different functions?
Different cells are different in structure because of their different functions (e.g. plant cells have cell walls because they don't have bones). Also, cells have different functions because they work together with other cells to create a working system (e.g. the human body)
What is a structure that contains the cells genetic information?
Chromosomes.Actually it would be the nucleus, because DNA is genetic and DNA is in the nucleus of the cell.
Why the elements are different?
Because each chemical element has a different atomic structure and contain a different number of protons and electrons.
How is the structure related to it's function?
They just are because different cells need different sized parts for different functions
Why is saltwater different to normal water?
Because it contains salt, please think!
