Human Genome researchers discovered transposons. What are these structures?

Answers

Answer 1
Answer:

Answer:

Transposon is a fragment or sequence of DNA that can move unregulated to any point in the cell genome, leading to a phenomenon called transposition.

Explanation:

Transposon is the name of what was previously known as jumping genes, being a DNA sequence capable of moving freely within a DNA molecule. A transposon can produce mutations by translocation, altering the total amount of nucleotide in DNA molecule.

Genetic changes that are linked to evolutionary processes can be due to the existence of transposons, since they can even induce chromosomal changes.


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Directions: Select each correct answer. More than one answer may be correct.Rodrigo is using the design process to make a device that will cool a drink without ice or electricity. His first prototype was simply an airtight, watertight pouch containing 40 g of ammonium chloride (NH4Cl). He added 100 mL of water to the ammonium chloride, sealed the pouch tightly, and then wrapped the pouch around a small bottle of water. He tested his prototype by measuring the temperature of the bottle of water over time.



Next, Rodrigo performed the same test with different amounts and different concentrations of the ammonium chloride solution. For each set of measurements, he found the lowest temperature reached by the bottle of water and calculated the total temperature change. The table below summarizes his results.


Maximum Cooling Achieved
___________________________________________
trial 1 2 3 4 5 6 7
___________________________________________
grams of NH4Cl 30 40 50 50 60 70 80
___________________________________________
amount (mL) of
water added 100 100 100 150 150 200 200
___________________________________________
greatest
temperature
change (–°C) 3.6 4.3 4.3 4.8 5.2 5.6 5.8
___________________________________________

Finally, Rodrigo held the amount and concentration of the solution constant while trying different amounts of insulation.

Maximum Cooling Achieved
__________________________________________
trial 8 9 10 11
___________________________________________
insulation used: none towel blanket polystyrene-foam
______________________________________________
greatest
temperature
change (–°C) 5.8 8.8 9.3 9.6
_____________________________________________


Rodrigo wants to find more ways to improve his latest design. Which of the following should he try?
(CHOOSE ALL THAT APPLY)

A - a more concentrated solution
B - a less concentrated solution
C - better insulation
D - less insulation
E - a greater amount of solution
F - a lesser amount of solution

Answers

Temperature measures the average kinetic energy of particles of the substances. Therefore, the correct option are option C,E that is better insulation and a greater amount of solution.

What is temperature?

Temperature is used to measure degree or intensity of heat of a particular substance. Temperature is measured by an instrument called thermometer.

Temperature can be measured in degree Celsius °c, Kelvin k or in Fahrenheit. Temperature is a physical quantity. Heat always flow from higher temperature source to lower temperature source.

We can convert these units of temperature into one another. The relationship between degree Celsius and Fahrenheit can be expressed as:

°C={5(°F-32)}÷9

To improve his latest design Rodrigo should use a better insulation and a greater amount of solution.

Therefore, the correct option are option C,E.

To know more about temperature, here:

brainly.com/question/13694966

#SPJ5

Answer:

Better insulator.

A greater amount of solution

Explanation:

8) The by-products of cellular respiration include A) energy and oxygen. B) glucose and oxygen. C) carbon dioxide and water. D) glucose and carbon dioxide.

Answers

Answer: C) carbon dioxide and water.

Explanation:

It should've ranked coupled with the release of energy. Because carbon dioxide and water are released into the atmosphere as byproducts of cellular respiration couple with the release of energy.

Many energy sources use turbines to generate electricity. What is one type of energy source that does not use turbines? A. Coal B. Hydroelectric C. Wind D. Solar

Answers

Solar power does not use turbines.

How do roots get sunshine?

Answers

Sunshine is absorbed by the leaves and more specifically the chlorophyll which convert the sunlight to energy used by the roots. 

After hunting by European settlers, the bison population of 60 million was reduced to _______ of its original size. A) 1 : 60
B) 1 : 600
C) 1 : 6,000
D) 1 : 60,000

Answers

D
1 : 60,000
This meant that the population decreased 1,000 times

Answer D mate - 1 : 60,000

What is the most common salt found in ocean water? A.
potassium

B.
calcium carbonate

C.
magnesium

D.
sodium chloride

Answers

There are several salts in sea water, but the most abundant is ordinary table salt orsodium chloride (NaCl). Sodium chloride, like other salts, dissolves in water into its ions, so this is really a question about which ions are present in the greatest concentration.
The correct answer is D. Hope that helps!