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yarga [219]
3 years ago
12

Explain why specific restriction enzymes must be used in DNA fingerprinting

Biology
1 answer:
timofeeve [1]3 years ago
6 0
The enzyme is important because the "fingerprint" produced is dependent on the different sized pieces of cut DNA taking different amounts of time to push through the mobile phase-typically an agarose gel
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In a study published in the journal Nature, scientists studied eight ponds in Florida: four that were populated by a species of
AlexFokin [52]

Answer: the rate of pollination of flower, in a field next to a pond with no fish, will DECREASE.

Explanation:

POLLINATION is defined as the process by which flowering plants, through the aid of external agents such as insects,wind, water and other animals, are able to transfer pollen grains from an anther to a receptive stigma. Insects are the most common pollinators. They visit flowers to obtain nectar and pollen as source of food. Flowers use various features, such as colour and scent, to attract and guide insects to the food source within them. In the process of reaching their source of food, insects bring about pollination.

From the study conducted by scientist in Florida, eight(8) ponds where subjected to the the study. The first four (4) ponds had species of fishes that fed on dragonflies and dragonfly larvae, hence the reason for a decrease in the population of the dragon flies in the area around it. While the remaining four (4) ponds had NO fish and the area around it is populated with dragonflies and dragonfly larvae. This is so because of the absence of fish.

It was then noted that the dragon lies fed of the insect pollinators such as the bees and butterflies. Since these dragonflies and its larvae are abundant in the field which is close to the pond with no fish, they will grossly depend on the insect pollinators as their source of food thereby decreasing the rate of pollination in the field next to the pond with no fish.

7 0
2 years ago
Why dont children look exactly like their parents?
Illusion [34]

Answer:

because parents only give the child 1/2 of their chromosomes

Explanation:

8 0
2 years ago
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Plant and animal cells both have
aev [14]

Answer:

A nucleus, mitochondria, endoplasmic reticulum, golgi apparatus, and lysosomes.

Explanation:

8 0
3 years ago
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Which of the following is the correct order in which toxic nitrogen compounds are converted to less toxic nitrogen compounds in
alex41 [277]

The order in which toxic nitrogen compounds are converted to less toxic nitrogen compounds in the nitrogen cycle is NH3 ----> NO2-   -----> NO3-

The nitrogen cycle refers to the movement of nitrogen in the ecosystem. The process of converting nitrogen into less toxic forms of nitrogen which is useful to plants is called nitrification.

During the process of nitrification, ammonia or ammonium is first converted to nitrates by the action of the microorganism called nitrosomonas. Nitrobacter converts nitrites to nitrates which are useful to plants.

Hence, the order in which toxic nitrogen compounds are converted to less toxic nitrogen compounds in the nitrogen cycle is NH3 ----> NO2-   -----> NO3-

Learn more: brainly.com/question/1245871

5 0
2 years ago
Which group of organic compunds store energy for long periods of time
scZoUnD [109]

Lipids!!!

Hope this helps! :)

8 0
2 years ago
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