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Sophie [7]
3 years ago
8

Is DNA usually a string of nucleotides

Biology
2 answers:
Reptile [31]3 years ago
7 0
DNA is made up of three subunits: a deoxyribose 5 carbon sugar, a phosphorous group, and a nitrogenous base (adenine, thymine, guanine, cytosine). All in all, these are called nucleotides that wrap around in a double helix in order to form DNA.
Svetlanka [38]3 years ago
4 0
In living organisms DNA<span> does not </span>usually<span> exist as a single molecule, but ...... Levene suggested that </span>DNA<span>consisted of </span>a string of nucleotide<span> units</span>
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Which of the following is an example of Cross-Contamination? A. A customer breaks their tooth after biting into a hamburger with
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Answer:B. A customer gets sick with E. Coli after eating lettuce that was cut on same cutting board as raw meat.

Explanation:

The glass is not a food and is not considered cross contamination.

The meat was fully cooked and the E. Coli is destroyed.

the same situation as A.

8 0
3 years ago
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Where do the axons that enter the cortico-spinal tract originate? (The complete answer should include more than one of Brodmann’
torisob [31]

Answer:

<u>From the main motor cortex, Brodmann region 4 premotor areas and the primary somatosensory cortex .</u>

<u />

Explanation:

The corticospinal tract originates in many regions of the brain, including

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  • pre-motor regions

The corticospinal tract allows for voluntary control of motor functions.

30% of the neurons in the corticospinal regions are found in the primary motor cortex. 40% are split up in several regions; the parietal lobe, somatosensory cortex and the cingulate gyrus.

The axon is a tube enclosed in and insulated by the myelin sheath. It serves as a link to impulses for certain neurons that often comprise axon hillocks that are junctions between the axon and the cell body.

6 0
3 years ago
Name two molecules in the body that UV radiation can damage
kotegsom [21]

Answer:

The two main DNA lesions formed by exposure to UVB are cyclobutane pyrimidine dimers (CPD) and 6-4 pyrimidine pyrimidone photoproducts (6-4PPs), and its Dewar isomers.

4 0
2 years ago
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Which is an example of minutiae in the study of fingerprints?
kirill [66]

Answer:

bridge,for,and eye or enclosure

7 0
2 years ago
The level of productivity in oceans can be explained by the fact that ____.
musickatia [10]

The level of productivity in oceans can be explained by the fact that the volume of the global ocean is enormous.

The oceans cover about 70% of the earth. This makes the ocean to occupy the largest volume on earth.

In spite of this large volume, the productivity of the ocean is just about 55 billion tons.

This low productivity of the ocean is tied to its large volume and small amount of primary productivity.

Learn more: brainly.com/question/22283115

8 0
2 years ago
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