D. is your correct answer
Both soil and the ocean contain charcoal microbes, assigned to the Archaeologist, that convert ammonia to nitrites. They are more abundant than the nitrifying bacteria<span> and may turn out to </span>play<span> an important </span>role<span> in the </span>nitrogen cycle<span>.</span>
Answer:
Arthropods have a tough, non-living outer shell called exoskeleton, which protect their soft bodies while echinoderms have living endoskeletons, which develops within the deeper skin or body tissues and act as their protective covering.Explanation:
Answer:
In the transcription of DNA to mRNA, for the DNA sequence 3'-AGGTCTCAC-5' corresponds to an mRNA sequence 5'-UCCAGAAGUG-3'.
Explanation:
Transcription is the process by which a strand of mRNA, needed to direct protein synthesis in the cytoplasm, is synthesized from a strand of DNA.
The sequence of nucleotides in the RNA chain depends on the sequence of bases in the DNA strand, being placed according to the complementarity of nitrogenous bases, where a purine is complemented with a pyrimidine.
In RNA, the thymine base is replaced by Uracil, the complementary base to adenine of DNA.
<u>ADN mRNA</u>
A U
T A
C G
G C
For this reason:
<em>DNA:</em><em> 3’ A G G T C T T C A C 5’</em>
<em>mRNA:</em><em> 5'-U C C A G A A G U G-3'</em>
