<span>(1) Specific sections of DNA molecules in the
chromosomes are activated.</span> This <span>contain identical chromosomes to function
differently.</span>
The lac repressor protein is bound to the operator region of the lac operon when there is no lactose in the medium. When introduced in lactose, it binds to an allosteric site on the repressor causing its to change conformation and release from the operator. This allows the polymerase that is bound to the promoter region to proceed transcription of the lac operon genes (LacZ, Lac A, and Lac Y). Translation of these genes forms enzymes that enable the organism to break down lactose for energy.
The number of calories on a Halloween stash depends on the type of candies and the number of units of each. If the stash contains 5 units of each of these candies: chocolate bars, taffies, lollypops, and candy corn the total number of calories is 1,650.
Calories are the most common unit used to define the energy a specific food gives to your body. For example, an apple has 52 calories, while a banana has 89 calories.
Considering this, in a Halloween stash the calories depend on two factors:
- The types of candies or products
- The units of each one
Let's suppose there are 5 units of each of the following candies:
- Chocolate bars
- Taffies
- Lollypops
- Candy corn
Let's now calculate the calories
- Chocolate bars = 220 calories x 5 units = 1,100 calories
- Taffies = 20 calories x 5 units = 100 calories
- Lollypops = 83 calories x 5 units = 415 calories
- Candy corn = 7 calories x 5 = 35 calories
Add all the previous results:
1,100 + 100 + 415 + 35 = 1,650 calories in total
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Each double bond in carbon dioxide represents two pairs of electrons which are shared between the carbon and oxygen atoms.
<h3>What is an Electron?</h3>
This refers to a subatomic particle which has a negative charge and is involved in chemical reactions.
Each double bond in carbon dioxide represents two pairs of electrons which are shared between the carbon and oxygen atoms so as to enable them achieve an octet configuration.
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Answer:
with dipping a paper towel strand into water.
Explanation:
this mimics the xylem.
