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Andre45 [30]
4 years ago
7

Due tomorrow please help me

Biology
1 answer:
podryga [215]4 years ago
7 0

Answer:

this is something you have to do on your own it's a project 7 slides or more if you want about the topic of interest

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The figure below shows bands of DNA that were separated using gel electrophoresis. Which band contains the smallest DNA fragment
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I believe the answer would be Band C.
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6. species Closely related of orchids never mate in the wild because they bloom at different times. This is an example of ______
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Answer:

temporal reproductive isolation

Explanation:

The correct answer would be temporal reproductive isolation.

<u>Reproductive isolation</u> generally refers to series of biological mechanisms or processes that prevent members of different species from mating/fertilization or prevent the product of their mating to be invalid.

Some reproductive isolation processes prevent members of different species from mating or prevent fertilization as a result of mating. These processes are known as pre-zygotic reproductive isolation mechanisms.

Some other processes ensure that the product of fertilization (when it occurs) is invalid. These are known as post-zygotic isolation mechanisms.

<em>A good example of the pre-zygotic reproductive isolation process is </em><em>when closely related by different species bloom at different times</em><em>. This will prevent mating or cross-pollination to happen between the different species. This is known as temporal reproductive isolation.</em>

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