Search found 5 matches

by Harvey23
Wed Mar 04, 2009 12:42 pm
Forum: Cell Biology
Topic: Need help with Genes/DNA;
Replies: 2
Views: 2110

Hi, Q3 seems fine. Although just to nitpick, a gene carries the information required to manufacture a single protein (in eukaryotes). This will not neccessarily function unless other proteins are also manufactured. In the case of enxymes, co-factors etc. Your answer to Q6 is a tad wrong. Proteins ar...
by Harvey23
Tue Mar 03, 2009 12:50 pm
Forum: Molecular Biology
Topic: DNA and RNA
Replies: 6
Views: 5751

DNA is produced by replication of two existing strands when they are unwound, NOT transcription.

;)
by Harvey23
Mon Mar 02, 2009 6:09 pm
Forum: Genetics
Topic: Homework help!
Replies: 5
Views: 4533

Re: Homework help!

Hey, A)How many nucleotides are there in this strand? 18 B) How many codons are there in this strand? 6 C) Show the tRNA anticodons that will bond with the mRNA codons. UAC UGA GCG AAU GCA AUU D) Show the correct sequence of amino acids coded for by this mRNA Tyrosine, Cysteine, Alanine, Aspargine, ...
by Harvey23
Mon Mar 02, 2009 4:15 pm
Forum: General Discussion
Topic: How many H+ are necessary to drive the synthesis on ONE ATP?
Replies: 1
Views: 1514

Re: How many H+ are necessary to drive the synthesis on ONE ATP?

Hi,

The current evidence suggests 3 H+ are require to synthesise 1 ATP molecule.

One H+ moves the ATP sythase one conformation between open, loose, tight etc. So therefore 3 H+ are requireed for one full cyle and thus production of 1 ATP.

Hope this makes sense,
Harvey :wink:
by Harvey23
Mon Nov 03, 2008 12:33 pm
Forum: Cell Biology
Topic: Golgi Body
Replies: 1
Views: 4205

Golgi Body

Hi there, Just a quick question on the Golgi Body (assuming maturation model)... My text book says vesicles fuse with each other and then the cis-cisternae after budding from the rough ER. But what exactly is the cis-cisternae? Purely a collection of vesicles early in the maturation process?...or ra...