Insect Species Resistance DOT in
1550
Resistance to DDT In
100
Bestance Lo DDT IN
CD
Anagnetes ambae
Aapees up
189
494
DDT is a synthetic compound commonly used as an insecticide. It was used to control mosquito species that
commonly spread diseases like malaria. The data show the percent resistance for three species of mosquitoes ov
three decades. What explains the trend seen in the data?
Genetic drift resulted in the random deaths of non-resistant insects.
leaving only resistant mosquitoes to breed.
B
Artificial selection favored genotypes that were bred by humans to
maintain the desired traits in the mosquito populations,
Gene flow between the three species increased the genetie diversity of the
populations, resulting in more DDT-resistant species over time
D
Natural selection favored resistant members of the species wah surved
and reproduced at a greater frequency than non-resistant mosquitoesi
eristeated with antant brot Because of a
bacteria at isa

transcription is a process in which information is rewritten. it is something our cells must do, in a more specialized and narrowly defined way. in biology, transcription is the process of copying out the dna sequence of a gene in the similar alphabet of rna. it needs to happen in the nucleus because that's where the dna is. dna is always inside the nucleus unless the cell is dividing.

transcription is the first step in gene expression, which involves copying a gene's dna sequence to make an rna molecule. transcription is performed by rna polymerases. it has three stages: initiation, elongation, and termination. rna molecules must be processed after transcription in eukaryotes.

explanation:

long version:

the protein synthesis consists two processes which are, transcription and translation. transcription takes place in the nucleus. it uses dna as a template to make an rna molecule. rna then leaves the nucleus and goes to a ribosome in the cytoplasm, where translation occurs. transcription is the first part of the central dogma of molecular biology: dna → rna. it is the transfer of genetic instructions in dna to messenger rna (mrna). during transcription, a strand of mrna is made that is complementary to a strand of dna.  

these three stages are:

  initiation: in which   is the beginning of transcription.occuring when the enzyme rna polymerase binds to a region of a gene called the promoter. this signals the dna to unwind so the enzyme can ‘‘read’’ the bases in one of the dna strands. the enzyme is now ready to make a strand of mrna with a complementary sequence of bases.

    elongation: in which is the addition of nucleotides to the mrna strand. rna polymerase reads the unwound dna strand and builds the mrna molecule, using complementary base pairs. there is a brief time during this process when the newly formed rna is bound to the unwound dna. during this process, an adenine (a) in the dna binds to an uracil (u) in the rna.

    termination: in which is the ending of transcription, and occurs when rna polymerase crosses a stop (termination) sequence in the gene. the mrna strand is complete, and it detaches from dna.

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me and my friend did 2

a chain link fence because there so tiny even my albino donkey can't get out