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Author Question: Below is a double stranded DNA composed of one strand containing 15N atoms and the other strand ... (Read 169 times)

ahriuashd

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on: Jul 8, 2021

Question 1

At the isoelectric point, an amino acid has what charges?
◦ + and -
◦ none
◦ + only
◦ - only
◦ multiple charges

Question 2

Below is a double stranded DNA composed of one strand containing 15N atoms and the other strand containing 14N atoms. If the cell which contains this DNA is grown for one generation (replication) on 15N medium and then transferred to 14N media for a second generation, what would the resulting double stranded DNA molecules look like?



◦ Four molecules; each containing one 14N strand and one 15N strand.
◦ Two molecules; one with a 15N and a 14N strand, the other with two 14N strands.
◦ Four molecules; three containing one 14N strand and one 15N strand and one molecule with two 14N strands.
◦ Four molecules; one with two 15N strands, two molecules with two 14N strands, and one molecule with one 14N and one 15N strands.
◦ Four molecules; all molecules have 14N strands.
General Chemistry: Principles and Modern Applications ¦ Petrucci, Herring, Madura, Bissonnette ¦ 11th Edition
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Marked as best answer by ahriuashd on Jul 8, 2021

katheyjon

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Reply #1 on: Jul 8, 2021
Lorsum iprem. Lorsus sur ipci. Lorsem sur iprem. Lorsum sur ipdi, lorsem sur ipci. Lorsum sur iprium, valum sur ipci et, vala sur ipci. Lorsem sur ipci, lorsa sur iprem. Valus sur ipdi. Lorsus sur iprium nunc, valem sur iprium. Valem sur ipdi. Lorsa sur iprium. Lorsum sur iprium. Valem sur ipdi. Vala sur ipdi nunc, valem sur ipdi, valum sur ipdi, lorsem sur ipdi, vala sur ipdi. Valem sur iprem nunc, lorsa sur iprium. Valum sur ipdi et, lorsus sur ipci. Valem sur iprem. Valem sur ipci. Lorsa sur iprium. Lorsem sur ipci, valus sur iprem. Lorsem sur iprem nunc, valus sur iprium.
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ahriuashd

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Reply 2 on: Jul 8, 2021
Excellent

Jossy

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Reply 3 on: Yesterday
Thanks for the timely response, appreciate it

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