A. <span>Pollution made in one country might contaminate the ground, water, and air of other countries.</span>
It consists of the alveolar wall, the capillary wall, and their basement membranes.
Answer:
Answer is B. Carefully select the food s rich in nutrients but low in calories.
Explanation:
Myplate is a kind of chart showing the amount of food to put in plate in order to stay healthy.
In Margaret situation, the best thing for her is to start selecting food items that are low in calories, and at the same time rich in nutrients. Because if she does not put the nutrients level in consideration, her health will be severely affected.
Some of the examples of foods that are low in calories and rich in nutrients are fish, egg, oats,cabbage, popcorns, brocolli and fruits like apple and berries.
i would say the best answer is d
In complementary base pairing, the G pairs with C, and A pairs with T. Given that this be the rule, the complementary nucleotides for your sequence would be as follows: CGATTAACGTAGGCA.
With regards to proofreading, mutations in cell division occur once in around every 100,000 base pairs. If this happens, the enzyme that pairs the nucleotides to form DNA, called DNA polymerase, detects the error and moves back along the strand, it then cuts the incorrect nucleotide and replaces it with the correct one, fixing the error and continuing with the DNA synthesis.
This process corrects the majority of errors in DNA synthesis, but some errors can still be missed by the DNA polymerase, this is then rectified by a protein complex which binds to the incorrect pairing until anther complex, comes along and cuts that particular section of DNA out, which is then replaced by a new section of correct nucleotides synthesized by the polymerase enzyme, the two sections at either end that were cut is then sealed by ligase, an enzyme which essentially "glues" the DNA stands back together.
My apologies for the long answer, I hope I answered your question and that you understand it well enough.
