Search found 5 matches

by jessssxloveee
Tue Feb 09, 2010 1:54 am
Forum: Molecular Biology
Topic: Transgenic Mutation
Replies: 1
Views: 4374

Transgenic Mutation

I was just doing a practice test for my biology exam tomorrow, and I came across a question about transgenic mutations. We haven't covered this in our notes, and I couldn't find anything about it online, so I was hoping you guys could help me. According to the answer key, a transgenic mutation is th...
by jessssxloveee
Sun Feb 07, 2010 3:09 pm
Forum: Genetics
Topic: Selective Breeding
Replies: 2
Views: 2050

Selective Breeding

I understand that this crossing different plants and animals to obtain certain traits, but what exactly does it mean to "obtain" traits? I think it just means to get hybrids that have those traits, but I could be wrong. Can anyone help? Edit: In other words, I came up with this definition:...
by jessssxloveee
Sun Jan 31, 2010 9:38 pm
Forum: Molecular Biology
Topic: DNA/RNA interference
Replies: 1
Views: 1868

DNA/RNA interference

I'm confused on what DNAi/RNAi is. From my understanding, scientists are looking to modify pieces of DNA or RNA to stop reactions from occurring at certain enzymes. Is this a correct summary on what those are?
by jessssxloveee
Sun Jan 31, 2010 9:34 pm
Forum: Cell Biology
Topic: Vacuoles in Plants and Animals
Replies: 12
Views: 14405

In plant cells, the vacuole stores a lot of nutrients for the cell, so it needs to be a good size. In animals, the vacuole stores waste, and doesn't need to be as big.
by jessssxloveee
Sun Jan 31, 2010 9:30 pm
Forum: Cell Biology
Topic: Advantages of unicellular organisms over multi-cellular?
Replies: 3
Views: 33001

Advantages of unicellular organisms over multi-cellular?

Hi everyone - I have a quick question. I know a lot of advantages of multicellular organisms over unicellular, but I can't seem to find any advantages of unicellular organisms over multicellular. My textbook has proven to be no help, and I haven't have much luck online. The only thing I can think of...