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adelina 88 [10]
3 years ago
5

If a dna molecule were known to be 22% thymine (t), what would be the percentage of guanine (g) present?

Biology
1 answer:
Viktor [21]3 years ago
4 0

Answer:

Explanation:

According to Erwin Chargff's rule, he stated that, adenine (a purine) always forms base pairs with thymine (a pyrimidine) and that guanine (a purine) always forms base pairs with cytosine (a pyrimidine). an adenine does not form base pairs with cytosine despite it being a pyrimidine.

thus the amount of adenine will always be equal to that of thymine while

the amount of guanine will always be equal to that of cytosine. Therefore, since we have 22% of adenine, the amount of thymine will also be 22% making a total of 44%. thus to find the amount of guanine and cytosine = 100-44= 56%.

the amount of guanine will thus be 56/2= 28%, since guanine and cytosine are of equal amount.

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Complete question:

You hang a swing from a live tree branch that is roughly parallel to the ground. What will likely happen over time as the tree grows? Check All That Apply

  1. The swing will move farther away from the tree trunk.
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The swing's ropes will become embedded in the branch.

Explanation:

The trunk or branch strangulation sadly occurs very often. When people tie a young tree with different materials, such as a rope, or a cable, or a wire, and leave it there, the leash will eventually strangulate the tree.

Strangulation occurs because the tree keeps growing, applying pressure on the leash. The vascular system is in the trunk perimeter under the crust. Through the years, the pressure increases, the trunk is even more strangulated, and the vascular system is affected. One of the first and principal effects of strangulation is the increase in the trunk or branch diameter over the leash. This diameter change is because elements of the sap can not go back to the roots and keep near the strangulation. At this point, there are two options:

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  • The vascular system is so affected that the tree can not sort this problem and so, those parts of the tree located over the leash dye.

<em>In the exposed example, it seems that the tree could make it and included the swing's ropes in the branch. </em>

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