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<span>Exposure to cosmic rays, X-rays, ultraviolet rays, and radiation from radioactive substances may promote?
</span><span>Diversity Among Organisms</span>
Answer: C) Phosphate groups, guanine and cytosine.
DNA ( deoxyribose nucleic acid) and RNA ( ribonucleic acid) are considered as the genetic material of different organisms.
DNA contains dNTP ( deoxyribonucleoside triphosphate) as monomeric unit, whereas RNA contains NTP ( ribonucleoside triphosphate) as the monomer. The nitrogenous base, a pentose sugar and phosphate group are present in both DNA and RNA.
DNA contains the following nitrogenous bases- Adenine (A), Guanine (G), Thymine (T), and Cytosine (C), whereas RNA contains Uracil (U) in place of Thymine.
Guanine and Cytosine are the nitrogenous bases found in both DNA as well as RNA. Thus, in the given question, answer C) is correct.
Answer:
mRNA: A-U-G-C-A-U-U-A
Explanation:
Given DNA template: T-A-C-G-C-T-A-A-T
Newly transcribed mRNA: A-U-G-C-A-U-U-A
Transcription is a process that uses DNA template strand to make RNA strands. The process occurs in nucleus. The nucleotide sequence of DNA template is always complimentary to its respective RNA sequence.
Here, thymine of DNA template strand pairs with adenine of newly formed RNA. Adenine of DNA template would pair with uracil of RNA. Guanine of DNA template pairs with cytosine.