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Answer:</h2>
Option B.
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Explanation:</h2>
- <u>Phototropism</u> is the process in which plant grow in response to light. Where "Photo'' means light and ''Tropisms'' are responses to external stimuli in this case stimuli against light.
Now, going back to the question
- Plant cells grows faster in the presence of the hormone auxin.
- As a result when a plant senses a light from a direction, auxin molecules accumulates to the side that is further away from the light, due to which the plant cells that are further away from the light experience a greater auxin concentration and grow faster, due to which shoot gets bend towards the direction of the applied light.
- <u>Gravitropism</u> is a process of growth by a plant in response to gravity pulling on it. Roots show positive gravitropism i.e they will grow with the gravitational pull and stems show negative gravitropism that is they will grow against gravitational pull.
- Auxin is a plant hormone which promotes stem elongation and inhibits the growth of lateral buds.
- Auxin helps in maintaining apical dominance, which means in presence of auxin the plant will grow Vertically upward i.e against the gravity. Hence Auxin promotes gravitropism.
Result: Phototropism and Gravitropism is controlled by Hormones
By using microarray technology you can calculate the ratio by analyzing the colors on the glass plate. If the ratio is greater than 1, then the gene is induced by tumor formation. Less than 1 then it is suppressed by tumor formation. If the ratio is 0, the gene is not expressed in either cell. If the ratio is =<span> to 1, the gene is not affected.</span>
Answer:
Crossover, or crossing over, is the exchange of genetic material between two homologous chromosomes non-sister chromatids that results in recombinant chromosomes during sexual reproduction.
Explanation:
Answer: Galapagos tortoises are actually not of the same species most of them are sub-species of a larger older cousin though they are all classified as the species Galapagos tortoises but are not the same a lot of the sub-species have adapted to be able to live on specified island because not every island in the Galapagos is the same.
Explanation: