Random Thread xD

Status
Not open for further replies.
...

"And kids, that's the story of how AbsoluteAwesome1 became the new tagless wonder."

xD
 
Question 2, is to explain how complementary base pairings and hydrogen bonding are responsible for the double-helix structure of DNA...
 

My bio homework tonight is something that has to do with bases and acids and whatever.

o____x

*twitch*
 
My english homework is to write advice.
Reading through it it's not the best.
 
2. A hydrogen bond is when there is a dipole-dipole force between an electronegative atom, and a hydrogen atom, attached to oxygen, nitrogen or fluorine. Complementary base pairing is when two nucleotides on opposite DNA strands are connected with hydrogen bonds. Adenine joins with thymine, and guanine joins with cytosine. A DNA molecule is made up of two polynucleotide strands twisted around each other. The sugars and phosphates form the backbone of the molecule. Pointing inwards from this 'spine' are the bases, which pair up in specific ways. A purine always pairs with a pyrimidine, which makes a DNA double helix, a massive molecule that resembles a spiral staircase. The two strands are held by hydrogen bonds betwwen the complementary base pairs. There are ten of these pairs for each complete twist of the helix. The two strands are known as the 5' (5 prime) and 3' (3 prime) strand, named according to the numer of the carbon atom in the pentose sugar.

Question 3. How did Chargaff's data and Pauling's ideas support Watson and Crick's deductions on the structure of DNA?
 
HOLY PIE GEORGE!

That is one hard question! I mean...THE WORDS!

:faint:

Ours last year...were like one, two sentances long O_O
 
Haz? Writing advice?

Wow, and no wonder she has writer's block.

(Jk I love you hun :hug: )

Ha ha ha.

It might help if I got my butt off here and actually gave a crap about my topic.

Ooo i'm rather erm tetchy tonight.
Step away from the keyboard Hazzi!
 
I just kinda... looked at that question.
I saw big words.
I didn't try to make sense of it.
 
That was my answer Meg :p

You should of saw the answer to my first question... in fact:

1. Mononucleotides are made up of 3 parts. A 5-Carbon (or Pentose sugar), a nitrogen-containing base and phosphoric acid. The pentose sugar in RNA is ribose, and in DNA, deoxyribose. Deoxyribose has one less oxygen atom then ribose. There are two types of nitrogen-containing bases in mononucleotides. There is the purine base, which have two nitrogen-containing rings, and there is the pyrimidine base, which only has one. The rings have the chemical property of being bases because of the nitrogen atoms they contain. DNA contains combinations of four different bases with equal numbers of pyrimidines and purines. The purines are adenine (A) and guanine (G). The pyrimidines are cytosine (C) and thymine (T). In RNA, the thymine is replaced with uracil (U). A phosphate group (PO43−) is the third component of a nucleotide. Inorganic phosphate ions are present in the cytoplasm of every cell. This phosphate group makes the mononucleotides. The sugar, base and phosphate group are joined together by condesation reactions to form the nucleotide.
 
Well, she said to describe it in detail. I think that's enough details. I'm gonna have a shower, and hope it will clear my mind so I can finish the next 2 questions in under an hour.
 
Status
Not open for further replies.



New Posts







Receive up to $1,000 in Onboard Credit and a Gift Basket!
That’s right — when you book your Disney Cruise with Dreams Unlimited Travel, you’ll receive incredible shipboard credits to spend during your vacation!
CLICK HERE








DIS Facebook DIS youtube DIS Instagram DIS Pinterest DIS Tiktok DIS Twitter DIS Bluesky

Back
Top Bottom