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goldfiish [28.3K]
3 years ago
8

A boy moves to another country to live with his father. Years later, the boy decides to move back to live with the woman who rai

sed him. Immigration officials suspected that the boy was the woman’s nephew, not her son, and therefore not legally entitled to residency. Based on the DNA fragments, is it possible that she is the boy’s mother? Yes or No

Biology
1 answer:
12345 [234]3 years ago
7 0

The question is incomplete as it does not have the attached DNA gel which has been attached.

Answer:

No

Explanation:

In the given question, the DNA of the boy was compared with the DNA samples of his father and mother.

The DNA if these people were collected and PCR was performed to duplicate the DNA. These DNA samples were then analysed on the Gel electrophoresis in which the bands were visualized with the UV light.

In the band, we observe that the size of the DNA fragments was not similar to the DNA sample of the women but a band was of similar size to the father.

Since the bands are of different size of the boy when compared to the mother, therefore, the women are not the mother of the boy.

Thus, No is the correct answer.

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Ivanshal [37]
Abiotic factors are things in an ecosystem that aren't alive. 

Here are a few examples of abiotic factors in a rain forest:

1. Sunlight
2. Water
3. Soil
4. Rocks

Hope this helps!
8 0
3 years ago
Read 2 more answers
PLEASE HELP?!! WILL MARK BRAINLY
saw5 [17]

Answer:

You just posted his one? Credit to: Vermont Legislative Research Shop

Explanation:

If you need extra resources: Lawn and garden chemicals, such as fertilizers enter the groundwater in two ways. In the first method, the chemicals can enter the groundwater by rainwater into a stream as runoff. This is especially problematic in urban environments where hard-surfaced roads allow rainwater to move over them without benefit of soil acting as a filter (Rosen and White, 1999). The water in streams replenishes groundwater, so the chemicals are absorbed into the groundwater as well. The second method of contamination is through leaching, which is the downward movement of a substance through the soil. The fertilizer may also dissolve into the surface water, which recharges the groundwater (Virginia Cooperative Extension, 1996).  Nitrate is highly soluble and readily leaches into groundwater. Water with over 10 parts per million nitrate-nitrogen can cause methemoglobinemia, an inability to use oxygen in infants. The nutrient phosphorus harms clear, free water by creating algal blooms. This process, known as eutrophication, turns the water green, clouds the water, causes odor problems, and depletes the oxygen for fish and other species, effectively suffocating them (Lake Champlain Basin, 1998).  To ensure that the groundwater does not get so contaminated as to be unhealthy, in 1986 the Department of Food and Markets implemented the Pesticide Monitoring Program. The goal of this program is to test wells in agricultural areas to help farmers learn about practices that prevent pesticides from leaching into the groundwater, and to conserve the nutrients in fertilizers and manure in the soil. This program is funded by fees taken from companies that sell pesticides and fertilizers in Vermont (Vermont Department of Agriculture, Food and Markets, 1998).

7 0
3 years ago
One type of active transport is called cotransport. In cotransport, the energy available from an ion moving through a transport
kompoz [17]

Answer:

b- It is a spontaneous process.

Explanation:

Passive transport is the type of transport of substances across the plasma membrane that occurs without energy expenditure and occurs spontaneously. There is no energy expenditure during passive transport because substances naturally move from the more concentrated to the less concentrated medium, ie in favor of the concentration gradient.

Substance transport occurs until concentrations inside and outside the cell are equalized.

According to this conceptualization we can conclude that the correct answer to your question is the letter B.

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In a cell that undergoes mitosis, what happens next to the chromosomes after the
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Answer:

B

Explanation:

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The answer is C. Pheromones are hormones (which are proteinous) produces by individuals of the same species and are a means to send communication signals for social interactions. They signal alarm, food and even sex. Sex pheromones are  released by females beetles into the environment to signal their availability for mating. The pheromones are picked up by receptors on the male beetles and this is how they find the females.  

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3 years ago
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