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rodikova [14]
4 years ago
12

Two researchers experimentally formed tetraploid frogs by fertilizing diploid eggs from rana porosa brevipoda with diploid sperm

from rana nigromaculata. when they mated these tetraploid frogs with each other, most of the offspring that survived to maturity were tetraploid, with chromosome sets of both diploid parent species. based on these results, if this type of tetraploid formed in the wild, what would be the result? (y. kondo and
a. kashiwagi. 2004. experimentally induced autotetraploidy and allotetraploidy in two japanese pond frogs. journal of herpetology 38(3):381-92.)
Biology
1 answer:
GalinKa [24]4 years ago
7 0

In the given case, if the tetraploid gets formed in the wild, then the tetraploids would be reproductively isolated from both the parent species.

The mechanisms of reproductive isolation refer to the accumulation of the evolutionary mechanisms, physiological and behavioral procedures perilous for speciation. They inhibit the members of distinct species from generating offspring or make sure that any offspring are sterile.  

These obstructions sustain the veracity of the species by minimizing the flow of gene among the associated species.  


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.Answer:

Option A, fix nitrogen inside nodules on the roots of legumes

Explanation:

Rizhobium bacteria live in symbiotic relationship with roots of leguminous plants such as pulses including alfalfa, soybean etc.

Rhizobium or Bradyrhizobium  is a gram negative bacteria that satisfies the nitrogen starvation of host plant.  

These bacteria get habitation and nutrition from these leguminous plants and in return they fix the nitrogen into the nodules of the roots. This is a kind of facultative association between soil bacteria rizhobium and legume plants.  

Hence, option A is correct

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3 years ago
An ovum bursts from one of a woman's two __________ and is drawn into one of two __________. select one:
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An ovum bursts from one of a woman's Ovaries & is drawn into one of the two Fallopian tubes.

Explanation;

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4 years ago
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8 0
3 years ago
Why is it necessary for the digestive system to break down the food you eat?
boyakko [2]
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