DNA samples are added into wells with the help of electric current.
<h3>How dna samples added to the wells?</h3>
DNA samples are added into wells at one end of a gel whereas an electric current is applied to pull them through the gel. DNA fragments are negatively charged, so they move towards the positive electrode.
So we can conclude that DNA samples are added into wells with the help of electric current.
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Answer:
Scientists learn how climatic changes during the ice age affected life in this region by analyzing specimens found in these tar pits
Explanation:
La Brea Tar Pits are a group of tar pits in Los Angeles. Many preserved remains of ancient organisms (i.e., fossils) were extracted from the tar, including, among others, Western horses, prehistoric camels, three-toed tapirs, rodent bones, insects, mollusks, wood, plants, etc. The oldest fossils have been dated to be approximately 38,000 years ago by radiometric techniques. Moreover, the Last Glacial Period was the most recent glacial period within the Quaternary glaciation, which encompassed the period between 115,000 to 10,000 years ago. This period (LGP) encompassed the Last Glacial Maximum (LGM), which occurred about 20,000 years ago. In consequence, many of the fossils found in La Brea Tar Pits evidence how the ice age affected life in this region. Moreover, many of the fossil species extracted from the tar are still present today, thereby indicating how these species adapted to fluctuating climatic conditions, whereas certain species couldn't adapt fast enough as the environment changed and therefore they went extinct.
<span>Saturated fatty acids are those that have all single bonds except for the keto carbon of the carboxylic group. Unsaturated fatty acids are those that at least have one double bond between the carbons. If the fatty acid has only one double bond, it is referred to as monounsaturated.</span>
The pair of terms used to describe the location of the nose
when compared to the location of the eyes are medial and
inferior.
<h3>What is Location?</h3>
Location refers to the exact position of a particular object or
organism. In humans, location of different parts of the body
varies.
The location of the nose is medial to the eyes which means it is
found in the mid-line region of the eyes. The nose is also
inferior to the eyes as it is found in the lower region of where
the eye is located.
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