Mosquitoes became resistant to DEET through mutation and natural selection.
Natural selection selects beneficial alleles, which increase their frequency in the population, resulting in adaptation. Aptitude, which is the contribution of each genotype to the next generation, increases too.
In many cases adaptations, resulting from the natural selection process can be correlated to environmental factors or selective pressures applied by other organisms or habitats.
The DEET repellent is the selective pressure or modeling environmental factor.
Some mosquitos had mutations that altered their behavior.
The new mosquito's response is not-detection of repellent presence (only in those harboring the mutations).
These mutations benefit from natural selection.
Mosquitoes live and adapt to their environment.
Some mosquitos in the population most likely developed a mutation that favored them.
DEET, a repellent, was not detected. These individuals gained resistance to the chemical and were able to survive and reproduce, resulting in an increase in population size. Natural selection favored the resistance-inducing mutation.
Repellents may cause a genetic change in insects, causing them to be unable to detect the chemical. Insects have evolved to be able to tolerate the DEET dose that is commonly used to repel mosquitos.
Learn more about mosquito adaptation here:
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D organelle because youre talking about organs and cells well a organelle is a organ inside a cell
B. Mesozoic
C. Paleozoic
D. Cenozoic
Fur versus no fur
B
Legs versus no legs
C
Multicellular versus unicellular
D
Brown-colored versus green-colored
B) B
C) C
D) D
Answer: A is the correct answer.
Explanation: I got it correct on my question in science.
Answer:
c
Explanation:
Transcription and splicing only occur in eukaryotic cells. Transcription and
splicing both occur in the nucleus.
Transcription and splicing only occur in prokaryotic cells. Transcription and
splicing both occur in the cytosol.
Transcription occurs only in prokaryotic cells in the cytosol white splicing
occurs only in eukaryotic cell sin the nucleus.
Transcription and splicing only occur in eukaryotic cells. Transcription
occurs in the nucleus while splicing occurs in the cytosol.
Answer:
The correct answer is "Transcription occurs only in prokaryotic cells in the cytosol white splicing occurs only in eukaryotic cell in the nucleus".
Explanation:
Prokaryotic cells and eukaryotic cells could be differentiated by the site at which transcription occurs (the synthesis of mRNA from a DNA template). In prokaryotic cells transcription occurs in the cytosol, while in eukaryotic cells transcription occurs in the nucleus. This is easy to remember since prokaryotic cells do not have a nucleus. Also, splicing occurs only in eukaryotic cells in the nucleus. Splicing is the removal of the non coding regions of mRNA (introns), which happens frequently in eukaryotic cells and in prokaryotic cells is a very rare event.
Answer:
Transcription only occur in eukaryotic cells. Transcription and slicing both occur in the nucleus.
Explanation:
Transcription and splicing only occur in eukaryotic cells. Transcription and splicing both occur in the nucleus. Splicing of exons and intron removal is strictly a eukaryotic phenomenon. Prokaryotic genomes are smaller and do not contain introns. Both of these processes occur in the nucleus.
Answer:
One relative of whales was Pakicetus, which lived 50 million years ago. (the group of marine animals that includes dolphins and whales).
Explanation: