CGA Biology 2 - Nucleotides and Nucleic Acids
Questions And Answers 100% Correct | Latest
2025
DNA - ANSWER double helix with base pairs
contains thymine and C G A
unreactive/stable
RNA - ANSWER single-stranded with a single nucleobase
contains uracil and C G A
reactive/unstable
Pyrimidines - ANSWER 1 carbon ring
cytosine, uracil, thymine
Purines - ANSWER 2 carbon rings
adenine, guanine
, CGA - Comprehensive Geriatric Assessment
Why does adenine bond with thymine and guanine with cytosine? - ANSWER
pyrimidine binds with purine so width of DNA strand is uniform all along
complementary base pairing due to ability of base to form 2 or 3 hydrogen bonds
Mononucleotide - ANSWER the three components are joined by condensation
reactions where two molecules of water are produced
bond between phosphate and C5 of sugar is called a phosphoester bond
Condensation of nucleotides - ANSWER phosphodiester bond
hydroxyl group of C3 and phosphate group of C5
mRNA (messenger) - ANSWER short single-strand copy of one gene
transcribed from DNA and carries message (code) from nucleus to ribosome
tRNA (transfer) - ANSWER single-strand folded into a cloverleaf shape exposing
anticodons and amino acid binding sites
held in place by hydrogen bonds
transfers amino acids to ribosome
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 StudySet. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $10.99. You're not tied to anything after your purchase.