Answer a)
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75% of the children will have the probability of being tasters. 25% will have the probability of being non- tasters.
Answer b)
There will be a 75% chance that their first child or their fourth child will be a taster.
The chances for every child will be the same because alleles assort independently during the time of gamete formation. Hence, the probability remains the same every time.
Answer c)
There will be a 25% chance for the first three offsprings to be non-tasters. 75% chances will be of them being tasters.
This is because the alleles assort independently each time during gamete formation. Hence, the chances will be the same every time.
The right answer is Scientists should conduct long-term studies of DNA technology to determine the consequences.
DDT is a potent insecticide: it kills by opening the sodium channels of insect neurons, destroying them instantly, leading to spasms and then death. Some genetic mutations acting on the sodium channels can make some insects resistant to DDT and other insecticides working on the same principle.
The US Environmental Protection Agency has categorized DDT into the B2 class, that is, potential carcinogen for humans. This supports the fact that the insecticide acts on human DNA.
There are several techniques that can be used in studying the brain of human beings such as magnetic resonance imaging, magnetoencephalography etc.
Some of the techniques that are used to study the structure of the brain and ita functions are:
- Electroencephalogram (EEG): This is used for the detection of electrical activity in the human brain. It helps in the detection of abnormalities that an individual can have in their brain.
- Magnetoencephalography (MEG): This is a technique that's used for investigating the activities of the human brain. In this test, sensors are used in the formation of an image regarding magnetic fields that are produced within the human brain.
- Magnetic resonance imagining: This is when radio waves that are computer generated and magnetic fields are used in testing the brain. This helps in providing images of the brain.
In conclusion, the above techniques are used in testing the brain in order to carry out further research on the person.
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The answer is A. Because you large and small intestines is where everything from nutrients to water get absorbed.
