Answer:
D. Sulfur
Explanation:
Electrons are filled in shells. Oxygen has a total of 8 electrons while sulfur has a total of 16 electrons. Out of the total eight electrons, the first shell has two electrons while six electrons are filled in the “s and p” orbits of the second shell giving the outer shell a configuration of "2s2, 2p4".
Likewise, out of the total 16 electrons of sulfur, the last 6 electrons are filled in "s" and "p" orbits of the third shell. Sulfur has a total of six electrons in its outer most shell "3s² 3p⁴". Since the electrons present in the outer most shell are available for chemical reactions and determine the chemical nature of the atom, oxygen and sulfur should exhibit the same chemical properties.
Answer:
The correct answer will be option-E.
Explanation:
The CRISPR-Cas9 system is a simple and most versatile genome-editing tool to edit the genome of an organism.
The system consists of two components: "Cas-9 enzyme" which act like molecular scissors to cut the DNA and "Guide RNA or gRNA" which guides the Cas-9 enzyme to the target DNA by binding to the target DNA.
The gRNA consists of 20 bases long RNA sequence which is complementary to the sequence of the target DNA. This binding ensures the right binding and cutting of the target DNA.
Thus, option-E is the correct answer.
Molecules that are too large to be moved through the cell membrane can be transported into the cell by <em>Endocytosis</em><span>.
- Marlon Nunez</span>
The answer to your question should be "C".
I hope this will help you! Good luck(:
<h3><u>Answer;</u></h3>
1; 13
A very acidic pH level is <u>1,</u> and a very basic pH level is <u>13</u>.
<h3><u>Explanation;</u></h3>
- Acids are substances that produces a hydronium ion (H3O+) when it is dissolved in water while a base is a substance produces hydroxide ions when it is dissolved in water.
- <u>The pH is an inverse measure of the concentration of hydronium ions in a solution.</u> A solution that has a lower pH is more acidic than a solution that has higher pH while a solution that has a higher pH is more basic that a solution that has a lower pH.
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<em><u>A solution with a pH of 7 is neutral while a solution with a pH lower than 7 is acidic, with 1 being the most acidic and 6 the least acidic. A solution with a pH higher than 7 is basic, with 8 being the least basic and 13 being the most basic.</u></em>