Tuesday, April 8, 2014

More Birthday Cake Pictures--and Hopefully More Posting

Posted by Esther

Wow, we haven't posted here for over eight months now; however, we're planning on changing that soon! Lord willing, we want to revive this blog by posting an array of topics that will hopefully, be of interest to readers. We're also planning on posting more often, as that has been a struggle ever since we started this blog.

Well for now I decided to post some pictures of some birthday cakes I made recently. As I mentioned earlier in another post, we like to make our cakes from scratch at our home; and since I love to bake and cake-decorate, I'm usually the one to make my siblings' birthday cakes.

Here are the pictures (they're from 2013-2014):

This red guy--I'm not sure what kind of creature he is--is from a computer game my brother (or should I say brothers) likes to play.

             This cake was for my youngest sister's first birthday--which we recently celebrated!

This is a penguin from a movie my younger siblings love--his name is Scamper (just in case anyone is curious ;) ). His beak was made out of a carrot that was covered in orange frosting, and the top of his hat was simply a piece of curly-leaf lettuce--strange, I know :) . Oh, and his eyes and eyebrows were made of raisins.


I'll leave you all with this famous piece of scripture from Matthew, that I was just recently studying; although it has nothing to do with what I posted above, I find it too beautiful not to post.  

{Emphasis is mine}.

Now when the tempter came to Him, he said, “If You are the Son of God, command that these stones become bread.” But He answered and said, “It is written, ‘Man shall not live by bread alone, but by every word that proceeds from the mouth of God."

Matthew 4:3-4

Well, good bye for now!

Sunday, August 11, 2013

Science Sunday: DNA Replication (Part 2)

Posted by Rebekah

 Please click here for “DNA Replication (Part 1).”

Last time I said that DNA replication in prokaryotes is different from that in eukaryotes. DNA replication in the bacteria Escherichia coli (i.e. E. coli) is often used to exemplify these differences.

Below I briefly summarize these differences.  

First, it is important to note that the E. coli chromosome is circular and only has one origin of replication—this is the case for most other bacteria.   

As expected, replication begins at the origin of replication; hence, forming a replication bubble and two replication forks. Please note that the daughter strand is shown in light green.

Finally, two new daughter DNA molecules are formed. 

DNA Replication—a Closer Look
A closer look at DNA replication
In order to facilitate this section, I have made a drawing (see above) of only some of the many enzymes and proteins involved in DNA replication. Please note that, as implied in the previous post, DNA synthesis is no easy feat. Not surprisingly, one finds that there is still much to learn about this astounding process.

Much of the current knowledge of DNA replication comes from bacterial DNA, so my goal is to concentrate primarily on bacteria. Please study the drawing above carefully (which, by the way is conveniently color coded), as it will come in handy for subsequent posts.     
To be continued...


Reece, Jane B., et al. Campbell Biology. 9th Global Edition. “Many Proteins Work Together in DNA Replication and Repair.” Boston: Pearson, 2011. 357-365. Print.

WARNING: Due to several reasons, I do NOT recommend Campbell Biology for your homeschool. However, due largely impart to its prevalent use in colleges and universities (and even Wikipedia), I chose to use it as a reference.