Answer:
B. Use the polymerase chain reaction (PCR) to make multiple copies of the DNA.
Explanation:
The scientist is to analyze a small sample of DNA, the most useful step to start this would be first the use of polymerase chain reaction to make various copies of that DNA sample. PCR is essential and quick process that gives a lot of copies within few hours. It uses the sample or target DNA, according to which the primers are designed. Taq polymerase and DNA polymerase are also used in the process, it consist of various cycles in which copies are made. There are three basic steps 'Denaturation', 'annealing', and 'extension'.
Answer:
B
Explanation:
both parents have to have one recessive trait to have a blond child
Photosynthesis removes carbon dioxide naturally—and trees are especially good at storing carbon removed from the atmosphere by photosynthesis.
Answer:
See Explanation
Explanation:
We define antibiotic susceptibility testing as an evaluation of the ability of antibiotics to inhibit bacterial growth. This test is necessary because certain bacteria may have developed resistance to certain antibiotics.
Hence, if the antibiotic susceptibility testing result of Staphylococcus aureus showed absence of growth on the zones of penicillin, ampicillin, tetracycline and chloramphenicol disk, then it implies that these antibiotics are all largely effective against Staphylococcus aureus and could be used for treatment of Staphylococcus aureus infection.
The correct matching of the given items are:
- Omnivore- eats producers and consumers
- Population- all living and non-living things found in an area
- Species- a group of living things, more than one organism.
- Ecosystem- describes a type of organism and what group it belongs to.
<h3>What is an Organism?</h3>
This refers to an individual animal or living thing that is uni-cellular.
Hence, the other answers are:
- Community- a place where an organism lives and produces its own food.
- Limiting factors- anything that can limit the size of a population
- Carnivore- eats herbivores, omnivores and other smaller carnivores
- Food web: a network of food connected chains that shows a feeding relationship
- Symbiosis: a close relationship between species including mutualism, commensalism, parasitism
Read more about ecosystem here:
brainly.com/question/4005996
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