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Nostrana [21]
3 years ago
14

In the sweet pea crossing experiment by Bateson and Punnet, the F2 generation had many more offspring with the phenotypes of pur

ple flowers P, long pollen L and red flowers p, round pollen l than expected from independent assortment. (The parental cross was between PPLL x ppll plants.) The F2 generation can be explained because
Biology
1 answer:
gizmo_the_mogwai [7]3 years ago
3 0

Answer:

The F2 generation can be explained because the alleles for flower colour and pollen shape are linked.

Explanation:

<em>When two alleles are linked on the same chromosome, there is a high tendency for the alleles to be inherited together. Consequently, the frequency of the alleles recombining in subsequent generations is low.</em>

This is what Bateson and Punnet observed. There exist a linkage between P and L alleles and also p and l alleles, thereby increasing their frequencies  of occurring together and decreasing the frequency of their recombination.

Thus, the F2 generation observed by Bateson and Punnet is due to linkage of alleles.

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Peter who lives in the United States has been offered a job in India. Before he makes his decision, he reads books on India and
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Answer:

The answer is: false alarm

Explanation:

The "Signal Detection Theory" is <u>one of the theories used when it comes to psychology (particularly, perception and sensation</u>). When a person faces a <em>situation (stimulus or signal)</em> that he thinks is confusing, he can make a decision out of it.

If signals are present, this allows the person to decide whether it is present or absent. So, the outcome are hits or misses. When a signal is not present, the person still can decide whether it is present or absent. So, the outcome are "false alarms"<em> (if he decides its present) </em>or "correct rejection" <em>(if he decides its absent).</em>

In the situation above, Peter hasn't been to India. Thus, he doesn't know how it is to live in India nor the weather and culture in the country. So, in this situation, the signal is not present. However, Peter decides that the signal is present <em>(according to his perception)</em> and thus, he continued to go to India. However, he was disappointed with his decision. This kind of outcome is called "false alarm."

Thus, this explains the answer.

6 0
3 years ago
Step 4: Conduct research to support your claim. A) For each part of your claim, conduct research to provide two examples of scie
xz_007 [3.2K]

Answer:

Research for species is done by microscopic view. The micro organism like fungi and bacteria are difficult to be observed by naked eye.

Explanation:

The research process includes the detailed view of the properties of micro organism. Their way of living separates them from each other. Parasites used to live in the body of their victim.

8 0
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Celeste is in the end stages of alzheimer's disease. during her final days of life, celeste will
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What is the role of a scientist
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One is to involve exercising curiosity in order to ask questions and seek answers about the universe.

6 0
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Answer:

Mammals undoubtedly play an important role in ecosystems by providing essential services such as seed dispersal, pollination and regulating insect populations, and reducing disease transmission [20–22] and there is some evidence that some groups act as indicators of general ecosystem health [23].

Explanation:

4 0
3 years ago
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