Two Types of Nucleic Acids
There are two types of nucleic acids:
1. RNA (ribonucleic acid)
2. DNA (deoxyribonucleic acid)
Chemical Composition of Nucleotides, DNA, and RNA
Nucleotides are the individual units that make up DNA and RNA. Each nucleotide
consists of a nitrogen-containing base, a sugar, and a phosphate group. In DNA, the
sugar is deoxyribose, while in RNA, the sugar is ribose. The sugar groups differ by a
hydroxyl group at the 2' carbon.
DNA Double Helix
The DNA double helix is composed of two polynucleotide strands. Each strand has a
backbone made of alternating phosphate groups and sugars, with bases attached to
each sugar and facing inward. Complementary base pairing occurs through hydrogen
bonding between adenine (A) and thymine (T) and between cytosine (C) and guanine
(G) on opposite strands.
The two strands are antiparallel, meaning the 5' end of one strand is across from the 3'
end of the complementary strand.
The sequence of a DNA strand is written in the 5' to 3' direction.
Structure and Organization of Genetic Material
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying these notes from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller thekrakenmid. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $7.99. You're not tied to anything after your purchase.