Examlex
Identify the type of mutation associated with the following questions and statements. Some answers may be used more than once.
-Which type of mutation replaces glutamic acid with valine in beta globin proteins in individuals with sickle-cell anemia?
A)deletion only
B)insertion only
C)base-pair substitution
D)frameshift mutation
Eukaryotes
Organisms whose cells contain a nucleus enclosed within a membrane, including animals, plants, fungi, and protists, distinguishing them from prokaryotes.
Peptidoglycan
A polymer consisting of sugars and amino acids that forms a mesh-like layer outside the plasma membrane of most bacteria, providing structural support and shape.
Mitochondria
Membrane-bound cell organelles that produce most of the chemical energy needed to power the cell's biochemical reactions.
Earth's Early History
A period spanning from the formation of Earth about 4.5 billion years ago to the first appearance of abundant, complex life approximately 541 million years ago.
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