Which of following statement is correct for pollen tube

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1.Sexual Reproduction in Flowering Plants

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Which of the following statement is correct for the pollen tube

It shows chemotactic movement

It shows only tip growth

It is composed of three non-cellular zones

It shows radial cytoplasmic streaming

(AIPMT-1993)

Solution

(a)The movement of pollen tube towards embryosac though style is chemotactic as it secrets pectinases and other hydrolytic enzymes to create a passage for its entry into style.

Standard 12

Biology

After demonstration of totipotency, a botanist wishes to produce identical plants from an angiosperm by tissue culture. The parts or tissues which are likely to yield haploid embryos are

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If root of flowering plant has $24$ chromosomes then its gamete has how many chromosomes?

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Which one of the following statements is wrong?

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(AIPMT-2012)

The most resistant organic material known which makes up the outermost layer of pollen wall is

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Development and formation of pollen grains in anther of the stamen is known as

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Which of the following statement is correct for the pollen tube

Solution

Similar Questions

After demonstration of totipotency, a botanist wishes to produce identical plants from an angiosperm by tissue culture. The parts or tissues which are likely to yield haploid embryos are

If root of flowering plant has $24$ chromosomes then its gamete has how many chromosomes?

Which one of the following statements is wrong?

The most resistant organic material known which makes up the outermost layer of pollen wall is

Development and formation of pollen grains in anther of the stamen is known as

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