Answer:
A.) mRNA ( messenger RNA )
Explanation:
The answer is B, they were not overlapping in range, so they evolved and became not identical.
The classification of the characteristics and examples based on the model of speciation that is being described are as follows:
- <u>Allopatric Speciation:</u> speciation that is based on geographic isolation.
- <u>Sympatric Speciation:</u> organisms are reproductively isolated by postzygotic mechanisms and evolve into different species.
- <u>Allopatric Speciation:</u> organisms in different locations are subject to different selective pressures and evolve into different species.
- <u>Sympatric Speciation:</u> speciation that does not require geographic isolation.
- <u>Sympatric Speciation:</u> bread wheat evolved from two species of wheat with different chromosome numbers.
<h3>What is speciation?</h3>
Speciation can be defined as an ecological and biological process through which new species of a living organism are formed, especially due to isolation of a part.
<h3>The types of speciation.</h3>
In Science, there are five (5) major types of speciation and these include the following:
- Allopatric Speciation
- Peripatric Speciation
- Parapatric Speciation
- Sympatric Speciation.
- Artificial Speciation.
Read more on allopatric speciation here: brainly.com/question/4493180
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<u>Complete Question:</u>
Classify the following characteristics and examples depending on what model of speciation is described.
Allopatric Speciation Sympatric Speciation
Speciation that is based on geographic isolation
Organisms are reproductively isolated by postzygotic mechanisms and evolve into different species
Organisms in different locations are subject to different selective pressures and evolve into different species
Speciation that does not require geographic isolation
Bread wheat evolved from two species of wheat with different chromosome numbers
Answer:
an exchange of homologous segments between homologous chromosomes.
Explanation:
Crossing over happens during meiosis, during this process the two homologous chromosomes cross over each other, resulting in the exchange of genetic information giving rise to a mixture parental genetic materials.
Spindle Fibres are those structures which move chromosomes only during cell division.
And these spindle fibres are formed by the command of centrioles which during the process move to the on the opposite poles and helps the cell to prepare for division.
