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sweet [91]
2 years ago
7

How does polyploidy allow speciation to occur in a single generation? Polyploid offspring produce gametes earlier in the mating

season than than their diploid parents, causing reproductive isolation between the two generations. Polyploid offspring produce smaller gametes that disperse farther than the gametes of diploid parents, causing geographic isolation between the two generations. Physiological differences between polyploid offspring and their diploid parents allow them to thrive in different environments, causing geographic isolation between the two generations. Genomic differences between polyploid offspring and their diploid parents prevent them from successfully interbreeding, causing reproductive isolation between the two generations.
Biology
1 answer:
wariber [46]2 years ago
8 0

Answer:

Genomic differences between polyploid offspring and their diploid parents prevent them from successfully interbreeding, causing reproductive isolation between the two generations.

Explanation:

Speciation is an ecological and biological process through which new species are formed due to isolation.

In plants, polypoidy involves the possession of two complete sets of chromosomes and it leads to the origin of new species. Also, the two sets of chromosomes comprises of triploidy (69 chromosomes) and tetraploidy (92 chromosomes).

As a result of the genomic differences between polyploid offspring and their diploid parents, this usually prevent them from successfully interbreeding and consequently causing reproductive isolation between the two generations.

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What is plant blindness?
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Compared to men, women are immunologically <u>stronger </u>and they are <u>more</u> susceptible to lupus & multiple sclerosis.

<h3>What is lupus?</h3>

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6 0
1 year ago
What is artificial selection?
Nikolay [14]

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A

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Artificial means man made or not made by nature basically, meaning that humans breeding organisms for certain characteristics would be artificial.

8 0
2 years ago
3. Which of the following situations is least likely to lead to geographic isolation and allopatric speciation?
oksian1 [2.3K]

Answer:

b. A deep, narrow river divides a population of hummingbirds.

Explanation:

Hummingbirds can fly across the river. The deep and narrow river can not separate a population of hummingbirds into two patches since hummingbirds from one side of the river can fly and reach to the other side of the river.  

Without any geographical isolation, hummingbirds can continue to interbreed among themselves. The continued interbreeding would not allow their reproductive isolation and thereby would prevent the allopatric speciation.  

7 0
3 years ago
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