Question
Which one of the following statements is wrong?
Vegetative cell is larger than generative cell
Pollen grains in some plants remain viable for months
Intine is made up of cellulose and pectin
When pollen is shed at a two-celled stage, double fertilization does not take place
In over 60 per cent of angiosperms, pollen grains are shed at the 2-celled stage (vegetative cell and generative cell) . In these cases, the generative cell divides to form two male gametes during the growth of the pollen tube in the stigma, meaning double fertilisation still occurs . The other statements are correct: the vegetative cell is indeed larger than the generative cell , pollen can remain viable for months in families like Rosaceae and Solanaceae , and the intine layer consists of cellulose and pectin .
This question aligns with the NEET BIOLOGY syllabus, specifically targeting concepts from Sexual Reproduction in Flowering Plants. Mastering this topic is crucial for scoring well in the upcoming medical entrance examinations. Solving conceptually related problems will help you understand the nuances of these concepts and improve your problem-solving speed.
More Sexual Reproduction in Flowering Plants Questions
A dioecious flowering plant prevents both:
In a flowering plant, archesporium gives rise to:
Which one of the following plants shows a very close relationship with a species of moth, where none of the two can complete its life cycle without the other?
Double fertilization is:
In some plants, the female gamete develops into an embryo without fertilization. This phenomenon is known as:
To ensure that only the desired pollens fall on the stigma in artificial hybridization process: a: the female flower buds of plant producing unisexual flower need not be bagged. b: there is no need to emasculate unisexual flowers of selected female parent. c: emasculated flowers are to be bagged immediately after cross pollination. d: emasculated flowers are to be bagged after removal of anthers. e: bisexual flowers, showing protogyny are never selected for cross. Choose the correct answer from the options given below:
Which of the following statements is not correct?
In a cereal grain, the single cotyledon of the embryo is represented by:
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