Answer:
Polymerase chain reaction, or PCR, is a laboratory technique used to make multiple copies of a segment of DNA. PCR is very precise and can be used to amplify, or copy, a specific DNA target from a mixture of DNA molecules.
Explanation:
Scientific information refers to the classification, collection, dissemination, and retrieval of recorded knowledge treated both as a pure and as an applied science. The two features of a scientific information source, which may suggest that the information is not reliable are:
1. The information is based on data that are not peer-reviewed, that is, the information has not been reviewed by the experts in the field, or is not encouraged by an accord of experts in the field.
2. The references are not cited, that is, it not clear or not known that from where the information originated.
Physical chemists study matter and energy, and there is chemical reactions in your body, and all living things have elements, like carbon.
I would say D
Whales play an important role in stabilizing the aquatic food chain and reproduction of other species.
As more whales are killed the food distribution in the ocean becomes destabilized and causes changes in the food supply of many other kinds of marine life.
Whales are vital to the food chain, stabilising food flow and maintaining a healthy ocean.
As such, the rapidly decreasing whale population will have major effects on the ocean's ecosystem.
Believe it or not, whale poop also serves quite an important purpose to the ecosystem.
The non Mendelian inheritance pattern observed in snail coiling is most related to maternal inheritance.
<h3>Why is genetic inheritance important? </h3>
Genetic inheritance is necessary for evolutionary change. It describes how genes are passed from one generation to the next.It might consequently initially seem surprising then, that genetic inheritance itself is rarely inculded in life research.
The phenotype controlled by organelle genes exhibit maternal inheritance.The classic phenotype which exhibits maternal effects is coiling direction of snail shell.The phenotype that is seen in the offspring is controlled by the genotype of the mother.
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