Answer:
<em>UV rays are highly injurious to living organisms since </em><em>DNA</em><em> </em><em>and</em><em> </em><em>proteins</em><em> </em><em>of</em><em> </em><em>living</em><em> </em><em>organisms</em><em> </em><em>preferentially</em><em> </em><em>absorb</em><em> </em><em>U.V</em><em> </em><em>rays</em><em> </em><em>and</em><em> </em><em>it's high</em><em> </em><em>energy</em><em> </em><em>breaks</em><em> </em><em>chemical</em><em> </em><em>bonds</em><em>. UV rays damage DNA and mutation may occur. It causes ageing of the skin, damage to skin cells and various types of skin cancers.</em>
Answer:
The rules of base pairing explain the phenomenon that whatever the amount of adenine in the DNA of an organism, the amount of thymine is the same. Similarly, whatever the amount of guanine, the amount of cytosine is the same.
Hope it helps a lil! ^_^
The correct answer is A! Hope this helped!
Answer: DNA → RNA → protein
The sequence stated above
represents the central dogma of molecular biology. During the transcription process,
DNA (Deoxyribonucleic Acid) codes for mRNA (Messenger Ribonucleic Acid); the
mRNA in turn, codes for polypeptides during the translation process.
