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pickupchik [31]
3 years ago
15

Wich base is found only in DNA ​

Biology
1 answer:
Temka [501]3 years ago
3 0

Answer:

nitrogenous base Thymine is the only base which is found only in DNA.

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Heat is a form of? what is it?​
Evgesh-ka [11]

Heat is a form of energy.

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3 years ago
Corals feed on each other? True or false
Flura [38]

Answer: False

Explanation:

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3 years ago
How is enthalpy used to predict whether a reaction is endothermic or exothermic?
Radda [10]

<u>Answer:</u>

<em>329.48 KJ/mol heat is released by the combustion of 2 molof methane</em>

<u>Explanation:</u>

The value of enthalpy determines whether the reaction is exothermic or endothermic. If the enthalpy change is positive, then the reaction is endothermic (heat or energy released) and if the enthalpy change is negative then the reaction is exothermic (heat or energy absorbed).

2CH_4(g)+4O_2(g) => 2CO_2(g)+4H_2O(g)

\Delta H \ reaction=[ 2(\Delta HfCO_2)+ 4(\Delta HfH_2O)]-[2(\Delta HfCH_4)+4(\Delta HfO_2)]

                            =2 ( -(393.5 KJ)/mol)-[2( -74.6 KJ/mol)+4(-241.82 KJ/mol)]

                            = -787 KJ/mol-[ -149.2 KJ/mol-967.28 KJ/mol]

                           = -787 KJ/mol+1116.48 KJ/mol

                                          =329.48 KJ/mol

<em>In this question, </em><em>the enthalpy of formation</em><em> has positive value and hence the </em><em>reaction is endothermic</em><em> in which the heat is released. </em>

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3 years ago
Additions or deletions of bases in the nucleotide sequence of a structural gene most often result in
pashok25 [27]
<span> option a ...an altered sequence of amino acids in the protein that the gene encodes </span>
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3 years ago
Which biome is characterized by the following plant and animal adaptations?
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I am pretty sure the answer is C. Savanna
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4 years ago
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