Questions by Jiejing Zhang

Questions by Jiejing Zhang

A 1.5‑kb fragment of DNA is cloned into a plasmid vector that is 5.5 kb long at the EcoRI site, and the plasmid vector is then used to transform bacteria. If the plasmid DNA is then extracted from a single

asked Feb 24, 2021

1 answer

3 votes

151k views

Why do scientists publish the results of their invesigation

asked Aug 28, 2020

1 answer

0 votes

156k views

What does leave things on a bad note mean?

asked Aug 2, 2020

2 answers

5 votes

28.0k views

Sam, the owner of a small company, learned that a competitor was planning to spend $150,000 on promotion in the next financial year. As soon as he learned this, Sam called his finance manager and said,

asked Apr 22, 2020

1 answer

0 votes

232k views

How did Liu Bang's methods of ruling the empire differ from the methods used by the Qin Dynasty? He divided up the power among several states. He was more lenient and was guided by Confucian ideals. He

asked May 27, 2019

2 answers

4 votes

168k views

During a nine hour snowstorm it snows at a rate of 1 inch per hour for the first two hours, at a rate of 2 inches per hour for the next six hours, and at a rate of 1 inch per hour for the final hour. how

asked Jun 28, 2018

1 answer

3 votes

200k views

According to contemporary cultural anthropologists, why do humans in most cultures seem to engage in sexual activity?

asked Jun 20, 2018

1 answer

4 votes

84.1k views

What is 7.13×10 to the fifth power in standard form

asked Jan 14, 2018

1 answer

0 votes

66.7k views

First of all, I had seizures. The doctors gave me medicine for them. It was this pill called Phenobarbital, which is, like, this major sedative, so I was a junkie before I could even walk. I had to crawl

asked Aug 4, 2017

2 answers

4 votes

139k views

What do the lichens and mosses produce to break down rocks to begin the formation of soil ? Acids Nutrients Roots Soil

asked Apr 25, 2017

2 answers

0 votes

161k views

The rainfall this year was 18.6 centimeters. This is 3.2 centimeters less than half of the rainfall last year. What was the rainfall last year?

asked Mar 4, 2017

2 answers

3 votes

166k views

The function, y(r)=2.76r , is used to convert Russian rubles in Japanese yen, and the function, P(y)=0.16y , is used to convert Japanese yen into Mexican pesos. Use composition of functions to find the

asked Jan 10, 2016

1 answer

4 votes

35.3k views

An egg is released from an ovary about once per month in a process called

asked Jul 17, 2015

2 answers

5 votes

108k views

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