Explanation:
The discoveries indicates that the rocks were formed over millions of years ago due to the age of fossils they contain.
Fossils are the preserved remains of life found in rocks. Most fossils are used in relative dating of rocks.
- Dinosaurs are extinct organisms that once lived in the Mesozoic. This was about 100 million years ago.
- Tool man also grazed the surface of the earth just a few thousands to a million years.
- We are able to find their fossils in rocks because they have lived in some certain geologic periods.
- Here we are using the fossils to date the rock and this is called relative dating
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No, what determines a dominant gene is how many copies of that gene exists within the parent. This doesn't mean it will be the most common because of recessive genes. It doesn't matter how many copies a dominant gene has, a recessive gene can still appear in the offspring.
The answer is A. When a potent drug is discovered, it has to undergo animal and human trials to test it ADMET (Absorption, Distribution Metabolism, Excretion, and Toxicity) properties. Using tissue cultures to test drugs, such as cancer drugs, prevents the incidence of subjecting humans to the unknown adverse effects of the drugs before the drugs are determined to be safe for use.
<span>A scientist wants to create a florescent ornamental fish. He needs fluorescence similar to that of a firefly. Which of the send processes would help him create this fish?
The correct answer is </span><span>transformation of the DNA of a fish using a fluoroscent gene from a firefly. In order to do so, he would have to use the gene of the firefly as a reference in order to transform the DNA of a fish.</span>
