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Naddika [18.5K]
3 years ago
13

Many plant pathologists believe that plant resistance is based upon the interplay of different signaling molecules? Justified.

Biology
1 answer:
liberstina [14]3 years ago
7 0

Answer:

Yes.

Explanation:

Many plant pathologists believe that plant resistance is based upon the interplay of different signaling molecules because plants have various signaling molecules that plays a great role in their growth and development. Ethylene, auxin, cytokinins, gibberellins, and abscisic acid are the growth regulators that controls the growth of plants in different conditions i.e. in resistance. These signals leads the plant to take measures in difficult situations experience by the plants so in this way the plant is resistance to the harsh environmental condition.

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A botanist has acquired a group of pea plants. All of the pea plants have yellow pea pods (the recessive form of this trait) exc
Mekhanik [1.2K]

Answer:

Hetezygous

Explanation:

<em>The genotype of the initial green pod plant would be heterozygous.</em>

Let pea pod color be represented by C (c) alleles.

First, let us assume that the genotype of the green pea pod plant is homozygous dominant, CC. This was crossed with homozygous recessive, cc.

           CC   x   cc

      Cc   Cc   Cc   Cc

<u>All the progeny will have Cc genotype with phenotypically green color. </u><u>This is in contrast to the result obtained from the test cross in the illustration, hence the genotype of the initial green pea pod plant cannot be homozygous dominant.</u>

Now, let us assume that the genotype is Heterozygous, Cc.

       Cc   x   cc

 Cc   Cc   cc   cc

<u>50% of the progeny has Cc genotype with phenotypically green color while the remaining 50% has cc genotype with phenotypically yellow color. </u><u>This is consistent with the result from the illustration.</u>

Hence, the genotype of the initial green pea pod plant is heterozygous.

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