Areas in the DNA that contain repeated segments are the basis for DNA fingerprinting.
DNA fingerprinting is used to check whether there is a family relation between two persons. It is also used to identify the organisms that may be reasons for diseases. Furthermore, DNA fingerprinting are used in solving crimes.
Answer: True
Explanation:
The cerebrum and the cerebellum are parts of brain:
Cerebellum: lies under the cerebrum. Its purpose is to coordinate movements of the muscles, to maintain posture and balance.
Cerebrum: is the main portion of the brain, which consists of hemispheres right and left. It performs higher functions such as reading vision, touch, hearing, reasoning, emotions, and thinking.
They both contain a gray mater in their surface cortex and deeper nuclie whose function is related to motor control, coordination , precision, and balance.
Hence, the statement is true.
Answer:
<em>Hello, In all the ecological pyramids, producers (organisms that produce their own food) are found at the lowest trophic level. This trophic level contains the highest amount of energy. The energy in each trophic level of an energy pyramid is just 10 percent of the energy in the level below it. (Why is there less energy available at the top of an energy pyramid than at the bottom?) Less energy is available to organisms in the upper levels because each organism releases some of the chemical energy in food to the air as thermal energy. Less total energy is available with each step up energy pyramid. Hope That Helps!</em>
Answer:
Genetic drift
Explanation:
Genetic drift is defined as the random change in allelic frequencies from one generation to the other.
Genetic drift is an evolutionary mechanism in which the allelic frequencies in a population change through many generations. Its effects are harder in a small-sized population, meaning that this effect is inversely proportional to the population size. Genetic drift results in some alleles loss, even those that are beneficial for the population, and the fixation of some other alleles by an increase in their frequencies. The final consequence is to <u>randomly</u> fixate one of the alleles. Low-frequency alleles are the most likely to be lost. Genetic drift results in a loss of genetic variability within a population.
Genetic drift has important effects on a population when this last one reduces its size dramatically because of a disaster -bottleneck effect- or because of a population split -founder effect-.
