State two differences between DNA and RNA.
we did not study this at all, so far I see that DNA has several million nucleotides, the smaller RNA only has several thousand of them. the second thing I noticed is that they both have a base,a five carbon sugar and a phosphate group. DNA has adenine and guanine and two pyrimidines, cytosine, and thymine. RNA contains the same bases except thymine is replaced by uracil. Do you think that would be what they are asking for or is there differences in the acids also? thanks
That's right. Our class spent FOREVER on this, but RNA also has a different sugar type. DNA contain deoxyribose and RNA is just Ribose.
For similarities, I would say that they both have hydrogen bonds. . .
DNA is double stranded whereas RNA is single stranded. Two helices for DNA but one helix for RNA . . .
RNA comes from the master plan blueprint called DNA. . . .
RNA comes in messenger and transfer varieties whereas DNA is just DNA . . .
Just wait for the fun group when you get to proteins, polypeptides, and amino acids . . . !
You are correct in identifying some of the differences between DNA and RNA. Here are two additional differences:
1. Structure: DNA is a double-stranded helix, while RNA is usually single-stranded. DNA forms a double helix by pairing complementary nucleotides (adenine with thymine, and cytosine with guanine) through hydrogen bonding. RNA, on the other hand, can fold onto itself, creating complex secondary structures.
2. Sugar molecule: The sugar molecule in DNA is deoxyribose, hence the name DNA (deoxyribonucleic acid). RNA, as you mentioned, contains ribose, which is a slightly different sugar molecule with an additional hydroxyl group (-OH) attached to the carbon.
Overall, the main differences between DNA and RNA lie in their structures and the type of sugar molecule they contain.
You are correct! The two differences you mentioned, the number of nucleotides and the presence of thymine in DNA and uracil in RNA, are indeed important distinctions between DNA and RNA.
However, there is one other significant difference between DNA and RNA that you haven't mentioned yet, which is the type of sugar present in their structures. DNA contains a sugar called deoxyribose, while RNA contains a slightly different sugar called ribose. This difference in sugar composition is why DNA is called deoxyribonucleic acid and RNA is called ribonucleic acid.
So, to summarize, the main differences between DNA and RNA are:
1. Number of nucleotides: DNA typically consists of millions of nucleotides, whereas RNA is generally made up of only thousands of nucleotides.
2. Bases: DNA contains the bases adenine (A), guanine (G), cytosine (C), and thymine (T), while RNA contains the same bases except thymine is replaced by uracil (U).
3. Sugar: DNA has deoxyribose sugar, while RNA has ribose sugar.
These are the three main differences that define the distinctions between DNA and RNA. Remember, when faced with questions like this, it's always a good idea to analyze the components of DNA and RNA in terms of their structure, composition, and functional differences.