Question

1. what sugar is found in rna?
2. explain why mrna is needed to act as a messenger - why cant the dna just deliver itself?
3. where are proteins made?
4. which nitrogen base is found in rna that is not found in dna? what does it bond to?
5. put the following in order from smallest to largest: cell, nucleus, gene, chromosome, dna, organism, nucleotide
6. why is rna smaller than dna?

Explanation:

1. RNA (ribonucleic acid) contains ribose sugar.
2. DNA is located in the nucleus. Proteins are made in the cytoplasm. mRNA can carry the genetic code from the nucleus to the cytoplasm. DNA is too large and has a specific role in storing genetic information in the nucleus.
3. Proteins are synthesized on ribosomes.
4. RNA has uracil (U) instead of thymine (T) in DNA. Uracil bonds with adenine (A).
5. Nucleotide is the basic unit of DNA. A gene is a segment of DNA. DNA is organized into chromosomes. Chromosomes are in the nucleus. The nucleus is in the cell. An organism is made up of cells. So the order is nucleotide < gene < DNA < chromosome < nucleus < cell < organism.
6. RNA is usually single - stranded, while DNA is double - stranded. Also, RNA often codes for a single gene or a part of the genetic information, while DNA contains the entire genetic blueprint of an organism.

Answer:

1. Ribose
2. DNA is in the nucleus and too large to move to cytoplasm (where proteins are made), mRNA can carry genetic code from nucleus to cytoplasm.
3. Ribosomes
4. Uracil (U), it bonds to adenine (A)
5. Nucleotide < gene < DNA < chromosome < nucleus < cell < organism
6. RNA is usually single - stranded and codes for less genetic information compared to double - stranded DNA which contains the entire genetic blueprint.