Answer:
The nitrogenous bases guanine and adenine are A. purines.
Explanation:
Adenine and guanine are purines, whereas the other two bases in DNA (thymine and cytosine) are pyrimidines. The main difference between purines and pyrimidines is the number of rings that the base has: purines have two rings while pyrimidines only have one ring.
In addition, phosphate group and sugar group cannot be the answer to this question because these two elements in addition to a nitrogenous base makes up a nucleotide.
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Answer:378
Explanation: 378
have been cloned and
The other 207 loci have been mapped out, the true gene identities have yet to be determined.
The answer is B because mitochondria supports the respiration that it need to produce.
Answer:
The water which is released back to the lake contains thermal energy ie heat energy from cooled engines therefore bringing thermal pollution
Answer:
Mitosis involves the division of body cells, while meiosis involves the division of sex cells.
Explanation: