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How many of the following are the effect...

How many of the following are the effects influenced by ethylene?
(1) Synchronising fruit set in pineapples
(2) Seed development, maturation and dormancy
(3) Promotes female flowers in cucumbers
(4) Produce new leaves and chloroplasts in leaves
(5) Xylem differentiation

A

Three

B

Two

C

Four

D

Five

Text Solution

AI Generated Solution

The correct Answer is:
To determine how many of the given statements are influenced by ethylene, we will analyze each statement one by one. 1. **Synchronising fruit set in pineapples**: Ethylene is known to play a significant role in the ripening of fruits and can synchronize the fruit set in pineapples. Therefore, this statement is **correct**. 2. **Seed development, maturation, and dormancy**: This process is primarily influenced by abscisic acid (ABA), not ethylene. Thus, this statement is **incorrect**. 3. **Promotes female flowers in cucumbers**: Ethylene is known to promote the formation of female flowers in cucumber plants. Hence, this statement is **correct**. 4. **Produce new leaves and chloroplasts in leaves**: The production of new leaves and chloroplasts is primarily influenced by cytokinins. Therefore, this statement is **incorrect**. 5. **Xylem differentiation**: Xylem differentiation is mainly directed by auxins, not ethylene. Thus, this statement is **incorrect**. Now, let's summarize the findings: - Correct statements influenced by ethylene: 1 (synchronizing fruit set in pineapples) and 3 (promotes female flowers in cucumbers). - Incorrect statements: 2 (seed development, maturation, and dormancy), 4 (produce new leaves and chloroplasts), and 5 (xylem differentiation). **Total correct statements influenced by ethylene: 2** ### Final Answer: **2 statements are influenced by ethylene.**
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