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a_sh-v [17]
2 years ago
9

A commercial florist exposes her chrysanthemums—which are short-day plants—to a few minutes of red light during their daily dark

ness period in order to delay flowering. Why is this action effective?
Biology
1 answer:
Svetllana [295]2 years ago
8 0

Answer:

Red light act as a inhibitor and hence causes delay in flowering

Explanation:

Through Periodism phenomenon, the regulation in exposure to daylight for a certain time period can delay or enhance the flowering of the "light duration"sensitive plant.

When "short day plants" are exposed to light between  the essential long period of nights or dark period, the stage of flowering gets delayed.

Hence,  chrysanthemums on being exposed to red light during their daily darkness period lead  delay in flowering as red light act as an inhibitor.

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SVETLANKA909090 [29]
Think it’s answer D but it maybe B
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2 years ago
A gel electrophoresis migration pattern displaying polymerase chain reaction (PCR) products shows four strong bands. The lengths
dangina [55]

Answer:

D) The encoded protein contains four repeats of a specific sequence.

Explanation:

The polymerase chain reaction is a technique used to replicate or amplify the amount of DNA sample.

The technique employs running the DNA samples on the gel through which the DNA samples run based on their sizes.

The large-sized DNA fragment runs to a less distance whereas the small-sized DNA run to a large distance.

In the given question, four sizes of DNA bands are formed in the ratio of  1:2:3:4 which shows that the proteins encoded by this DNA have four repeats of a specific sequence of the template strand. This was confirmed when the largest band sample was again used as a sample of PCR and the PCR resulted in the four bands in similar  1:2:3:4.  

Thus, Option-D is the correct answer.

3 0
2 years ago
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Galina-37 [17]

Answer:

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4 0
2 years ago
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Bas_tet [7]

Answer:

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Explanation:

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The makeup of organs is necessary as organs are the structural level that individuals facilitate the function and make up the organ system that is a complex system made up of organs that are similar in their function. The organism is the most complex of all levels.

Thus, the correct answer is option A.

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2 years ago
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Orlov [11]
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2 years ago
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