One of the
biological concepts that evolutionists try to present as evidence
for their theory is the resistance of bacteria to antibiotics.
Many evolutionist sources mention antibiotic resistance as
"an example of the development of living things by advantageous
mutations." A similar claim is also made for the insects which
build immunity to insecticides such as DDT.
However, evolutionists are mistaken on this subject
too.
Antibiotics are "killer molecules" that are produced
by microorganisms to fight other microorganisms. The first
antibiotic was penicillin, discovered by Alexander Fleming
in 1928. Fleming realized that mould produced a molecule that
killed the Staphylococcus bacterium, and this discovery
marked a turning point in the world of medicine. Antibiotics
derived from microorganisms were used against bacteria and
the results were successful.
Soon, something new was discovered. Bacteria
build immunity to antibiotics over time. The mechanism works
like this: A large proportion of the bacteria that are subjected
to antibiotics die, but some others, which are not affected
by that antibiotic, replicate rapidly and soon make up the
whole population. Thus, the entire population becomes immune
to antibiotics.
Evolutionists try to present this as "the evolution
of bacteria by adapting to conditions."
The truth, however, is very different from this
superficial interpretation. One of the scientists who has
done the most detailed research into this subject is the Israeli
biophysicist Lee Spetner, who is also known for his book Not
by Chance published in 1997. Spetner maintains that the
immunity of bacteria comes about by two different mechanisms,
but neither of them constitutes evidence for the theory of
evolution. These two mechanisms are:
1) The transfer of resistance genes already extant
in bacteria.
2) The building of resistance as a result of
losing genetic data because of mutation.
Professor Spetner explains the first mechanism
in an article published in 2001:
Some microorganisms
are endowed with genes that grant resistance to these antibiotics.
This resistance can take the form of degrading the antibiotic
molecule or of ejecting it from the cell... [T]he organisms
having these genes can transfer them to other bacteria making
them resistant as well. Although the resistance mechanisms
are specific to a particular antibiotic, most pathogenic
bacteria have... succeeded in accumulating several sets
of genes granting them resistance to a variety of antibiotics.306
Spetner then goes on to say that this is not
"evidence for evolution":
The acquisition of antibiotic
resistance in this manner... is not the kind that can serve
as a prototype for the mutations needed to account for Evolution…
The genetic changes that could illustrate the theory must
not only add information to the bacterium's genome, they
must add new information to the biocosm. The horizontal
transfer of genes only spreads around genes that are already
in some species.307
So, we cannot talk of any evolution here, because
no new genetic information is produced: genetic information
that already exists is simply transferred between bacteria.
The second type of immunity, which comes about
as a result of mutation, is not an example of evolution either.
Spetner writes:
... [A] microorganism
can sometimes acquire resistance to an antibiotic through
a random substitution of a single nucleotide... Streptomycin,
which was discovered by Selman Waksman and Albert Schatz
and first reported in 1944, is an antibiotic against which
bacteria can acquire resistance in this way. But although
the mutation they undergo in the process is beneficial to
the microorganism in the presence of streptomycin, it cannot
serve as a prototype for the kind of mutations needed by
NDT [Neo-Darwinian Theory]. The type of mutation that grants
resistance to streptomycin is manifest in the ribosome and
degrades its molecular match with the antibiotic molecule.308

Bacteria quickly become immune to antibiotics by transferring
their resistance genes to one another. The picture above
shows a colony of E. coli bacteria. |
In his book Not by Chance, Spetner likens
this situation to the disturbance of the key-lock relationship.
Streptomycin, just like a key that perfectly fits in a lock,
clutches on to the ribosome of a bacterium and inactivates
it. Mutation, on the other hand, decomposes the ribosome,
thus preventing streptomycin from holding on to the ribosome.
Although this is interpreted as "bacteria developing immunity
against streptomycin," this is not a benefit for the bacteria
but rather a loss for it. Spetner writes:
This change in the surface
of the microorganism's ribosome prevents the streptomycin
molecule from attaching and carrying out its antibiotic
function. It turns out that this degradation is a loss of
specificity and therefore a loss of information. The main
point is that Evolution… cannot be achieved by mutations
of this sort, no matter how many of them there are. Evolution
cannot be built by accumulating mutations that only degrade
specificity.309
To sum up, a mutation impinging on a bacterium's
ribosome makes that bacterium resistant to streptomycin. The
reason for this is the "decomposition" of the ribosome by
mutation. That is, no new genetic information is added to
the bacterium. On the contrary, the structure of the ribosome
is decomposed, that is to say, the bacterium becomes "disabled."
(Also, it has been discovered that the ribosome of the mutated
bacterium is less functional than that of a normal bacterium.)
Since this "disability" prevents the antibiotic from attaching
onto the ribosome, "antibiotic resistance" develops.
Finally, there is no example of mutation that
"develops the genetic information." Evolutionists, who want
to present antibiotic resistance as evidence for evolution,
treat the issue in a very superficial way and are thus mistaken.
The same situation holds true
for the immunity that insects develop to DDT and similar insecticides.
In most of these instances, immunity genes that already exist
are used. The evolutionary biologist Francisco Ayala admits
this fact, saying, "The genetic variants required for resistance
to the most diverse kinds of pesticides were apparently present
in every one of the populations exposed to these man-made
compounds."310 Some other examples explained
by mutation, just as with the ribosome mutation mentioned
above, are phenomena that cause "genetic information deficit"
in insects.
In this case, it cannot be claimed that the immunity
mechanisms in bacteria and insects constitute evidence for
the theory of evolution. That is because the theory of evolution
is based on the assertion that living things develop through
mutations. However, Spetner explains that neither antibiotic
immunity nor any other biological phenomena indicate such
an example of mutation:
The mutations needed
for macroevolution have never been observed. No random mutations
that could represent the mutations required by Neo-Darwinian
Theory that have been examined on the molecular level have
added any information. The question I address is: Are the
mutations that have been observed the kind the theory needs
for support? The answer turns out to be NO!311
 
306 Dr. Lee Spetner, "Lee
Spetner/Edward Max Dialogue: Continuing an exchange with Dr.
Edward E. Max," 2001, http://www.trueorigin.org/spetner2.asp
307 Dr. Lee Spetner, "Lee Spetner/Edward
Max Dialogue: Continuing an exchange with Dr. Edward E. Max,"
2001, http://www.trueorigin.org/spetner2.asp
308 Dr. Lee Spetner, "Lee Spetner/Edward
Max Dialogue: Continuing an exchange with Dr. Edward E. Max,"
2001, http://www.trueorigin.org/spetner2.asp
309 Dr. Lee Spetner, "Lee Spetner/Edward
Max Dialogue: Continuing an exchange with Dr. Edward E. Max,"
2001, http://www.trueorigin.org/spetner2.asp
310 Francisco J. Ayala, "The Mechanisms
of Evolution," Scientific American, Vol. 239, September
1978, p. 64.
311 Dr. Lee Spetner, "Lee Spetner/Edward
Max Dialogue: Continuing an exchange with Dr. Edward E. Max,"
2001, http://www.trueorigin.org/spetner2.asp |