DDT has adverse affect on our environment due to its presence for a long time.
<h3>What is DDT?</h3>
DDT is an insecticide that can pass up in the food chain i.e. from insects to small birds, and then from small birds to big birds like hawks. High concentrations of DDT in birds leads to weakness in the egg shells.
This leads to a decrease in their population so we can conclude that DDT has adverse affect on our environment due to its presence for a long time.
Learn more about insecticide here: brainly.com/question/6589507
The correct answer is: introns
Processing of mRNA is process that occurs only in eukaryotic cells. After the transcription, newly formed mRNA molecule is called and it must be processed into a messenger RNA (mRNA). Processing includes:
• Addition of a 5' cap to the beginning of the RNA
• Polyadenilation- addition of a poly-A tail (tail of A nucleotides) to the end of the RNA
• Splicing- removal of introns and linking the exons
After these steps mRNA is mature and used for the further steps (e.g. translation).
Sometimes some genes are alternatively spliced.
It's C. RNA uses Uracil in place of Thymine
<span>TGCAAT
</span><span>ACGUUA</span>
The point on earth's surface directly above an earthquakes focus (hypocenter) is called the epicenter.
Large blood vessels and lymphatics are found in thesubmucosa.
Submucosa: dense, irregular tissue layer.
