Basics 3 min read
Alternative RNA Splicing
In the 1970s, genes were first observed that exhibited alternative RNA splicing. Alternative RNA splicing is a mechanism that allows…
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Basics 5 min read
How Genes Are Regulated ?
For a cell to function properly, necessary proteins must be synthesized at the proper time. All organisms and cells control…
Basics 7 min read
Translation
The synthesis of proteins is one of a cell’s most energy-consuming metabolic processes. In turn, proteins account for more mass…
Basics 2 min read
Eukaryotic RNA Processing
The newly transcribed eukaryotic mRNAs must undergo several processing steps before they can be transferred from the nucleus to the…
Uncategorized 4 min read
Transcription
In both prokaryotes and eukaryotes, the second function of DNA (the first was replication) is to provide the information needed to…
Basics 3 min read
DNA Repair
DNA polymerase can make mistakes while adding nucleotides. It edits the DNA by proofreading every newly added base. Incorrect bases…
Basics 7 min read
DNA Replication
When a cell divides, it is important that each daughter cell receives an identical copy of the DNA. This is accomplished…
Basics 5 min read
The Structure of RNA
There is a second nucleic acid in all cells called ribonucleic acid, or RNA. Like DNA, RNA is a polymer…
Basics 5 min read
Introduction to Molecular Biology
Figure 9.1 Dolly the sheep was the first cloned mammal. Photo shows Dolly the sheep, which has been stuffed and…
Basics 3 min read
Linked Genes Violate the Law of Independent Assortment
Although all of Mendel’s pea plant characteristics behaved according to the law of independent assortment, we now know that some…
Basics 4 min read
Sex-Linked Traits
In humans, as well as in many other animals and some plants, the sex of the individual is determined by…