yes, mRNA is made from a DNA template and should be the same length as the gene

Question

yes, mRNA is made from a DNA template and should be the same length as the gene sequence. yes, the mRNA should contain more bases than the DNA sequence because bases flanking the are also transcribed. yes, the mRNA has additional nucleotides in the form of a polyA tail compared to the DNA template no, the final mRNA contains only exons, the introns were removed. no, the mRNA was partially degraded after it was transcribed. A. B. C. E. gene 8. In order to radioactively label all new RNA synthesized in a cell, which would be the best label to use? A. 32P-dATP 3H-UTP 4C-Tyr D. 131-ribose E. 35S-Met Avery, McLeod, and McCarty's performed experiments to identify the transforming principle. You have isolated two similar organisms-one of which is pathogenic, and one of which is not pathogenic. You want to investigate the transforming agent. You heat-kill the pathogenic version and treat it with one of the enzymes listed in the first row. Then you mix it with the non-pathogenic organism. You then inject this mixture into mice. Some mice live; others die because the non-pathogenic organism was converted into a pathogenic one. Evaluate which of the following results would have supported the hypothesis that proteins are the transforming agent in the organism 9. RNase (cuts apart Protease (cuts Lipase (cuts Lactase (cuts apart RNA) DNAse (cuts apart DNA) Live Die lipids)lactose sugars) apart proteins) apart Die Live Live Die Die C Live Live Die Live 10. Replication in prokaryotes differs from replication in eukaryotes for which of the following reasons? A. Prokaryotic chromosomes have histones, whereas eukaryotic chromosomes do not. Prokaryotic chromosomes have a single origin of replication, whereas eukaryotic chromosomes have many

Explanation / Answer

8. In order to radioactively label all the new RNA synthesized in a cell, which would be the best label to use.
Correct option:

Explanation: Among all the radiolabelled compounds given in the option Uracil will be directly incorporated in the mRNA during transcription. RNA utilizes uracil in place of thymine.
14. During DNA replication which is the first process to occur?
Correct option:

Explanation: A special class of enzyme system helicase and topoisomerase unwinds the double-stranded DNA strand into a bubble loop. Only when this bubble is formed RNA primers and DNA polymerase are able to load on the template strand for synthesizing new DNA.
15. Which of the following is true of initiation during translation?
Correct option:

Explanation: The beginning of translation that is coping the three codon message in the mRNA to translate into amino acids. It is marked by assembling the ribozyme on the mRNA which produces polypeptide chain by forming a peptide bond.
16.
b. It is 2' deoxyribonucleic acid (DNA) It has 2' hydroxyl group (OH). And it belongs to pyrimidine group.
c. The region of nucleotide that is variable is the Nitrogenous base. Nucleosides such as pyrimidines ( Cytosine and Thymine) and Purine ( Adenine and Guanine) can be substituted here.

Related Questions

Navigate

• Browse (All)
• Browse Y
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.