Anatomy of Flowering Plant notes pdf for NEET

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Anatomy of Flowering Plant notes pdf for NEET:- Today we are sharing Anatomy of Flowering Plant notes pdf for NEET. This Anatomy of Flowering Plant notes pdf for NEET for upcoming examination like NEET, JEE, NTPC, SSC CGL, LIC, REET, UPPSC, MPTET, DSSSB, RPSC, UPSC, DRDO, DDA, AAI, SSC GD, ALL STATE PCS EXAM. Anatomy of Flowering Plant notes pdf for NEET and important questions Anatomy of Flowering Plant notes pdf for NEET which Will be helpful for you in preparing for the exams. Keep watching the updates on this website every day, here the notes and questions are updated daily, if you need notes/questions on any subject or topic, then you can contact our team. pdfdownload.in The team is looking forward to supporting you.

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Most Important Anatomy of Flowering Plant Question Answer

Q1 . Offspring formed due to sexual reproduction have better chances of survival. Why? Is this statement always true?
Answer:- During sexual reproduction male and female gametes from male and female individuals respectively fuse with each other and form zygote. This zygote contains new combinations of DNA/genes that are a result of recombination and crossing over. Due to the presence of these new combinations of DNA, variations are caused. These variations allow organisms to survive in unfavourable conditions. This is the reason why offsprings formed due to sexual reproduction have better chances of survival over those formed due to asexual reproduction. The above statement is not always true, because there have been instances when continuous sexual reproduction among species of a given population, causes a reduction in yield and reduces the chances of survival. It mainly occurs because, sometimes due to recombination, less desired combinations of DNA/genes are formed and they make species vulnerable to extreme conditions. Thus, the statement, offspring formed due to sexual reproduction have better chances of survival is not always true.

Q2. Why is the offspring formed by asexual reproduction referred to as clone?

Answer: The term clone refers to a group of genetically and morphologically similar individuals. In asexual reproduction, a single organism is able to give rise to offsprings. Due to this, the offsprings thus produced are copies of their parents. These offsprings are exact
replicas of each other also. That is why the offsprings produced by asexual reproduction are referred to as a clone.

Q3. Why is reproduction essential for organisms?

Answer: Reproduction refers to the process of production of offsprings by living organisms. The offsprings produced are similar to their parents. These offsprings grow and become reproductively mature to leave their progenies. Therefore, this process repeats itself and
a continuity of species is maintained generation after generation. If reproduction would not have been there, species would not be able to leave their progenies and sooner or later they might extinct. Thus, reproduction is essential for living organisms.

Q4. Which is a better mode of reproduction: sexual or asexual? Why?

Answer: Among sexual and asexual reproduction, sexual reproduction is considered to be a better mode of reproduction. It is mainly because sexual reproduction tends to create more amount of variations among the organisms. It involves two parents which contribute the 50% of their genomes each to the zygote. As a result of this, offsprings have father’s characters, mother’s characters and some other unique characters also. The variations caused by sexual reproduction are essential as they help organisms in adjusting to dynamic environmental condition and responsible for survival and gradual evolution of species. On the contrary, in asexual reproduction, single parent produces the offspring and thus, these offsprings are similar to their parent. Due to this, they have no advantage over organisms produced by sexual reproduction. Thus, sexual reproduction is a better mode of reproduction then asexual reproduction.

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Most Important Anatomy of Flowering Plant Question Answer

Q7. What is vegetative propagation? Give two suitable examples.

Answer: Vegetative propagation is a method of asexual reproduction in plants. In this method, a vegetative part of a plant gives rise to new plants. This vegetative part which has the ability to produce new plants is called vegetative propagule. Some common vegetative
propagules are runner, rhizome, sucker, tuber, offset, bulb etc. Vegetative propagation is of two types i.e. natural vegetative propagation and artificial vegetative propagation. In natural vegetative propagation, a vegetative structure detaches from the parent plant
and give rise to new plants. Artificial vegetative propagation includes methods developed by horticulturists to readily develop multiple plants through vegetative propagation.
The examples of vegetative propagation are:
1. Vegetative propagation by roots: Roots of some plants can develop adventitious buds to form new plants e.g. Dalbergia , guava, poplar, Albizia, Murraya etc. Fleshy roots such as those of sweet potato, tapioca, Dahlia etc. also develop adventitious buds and form new plants.
2. Vegetative propagation by leaves: The leaves of some plants develop buds over them. From these buds, new plants arise. E.g Bryophyllum .

Q8. Define (a) Juvenile phase.

Answer: All organisms have to reach a particular growth stage before they attain reproductive maturity. This pre -reproductive period of growth is called juvenile phase in animals. In plants, this phase is known as the vegetative phase. The duration of the juvenile phase
varies in different organisms.

(b) Reproductive phase

Answer: Reproductive phase refers to that phase of an organisms’ life cycle in which it attains reproductive maturity and become able to produce gametes and mate. This phase is marked by certain hormonal changes.

(c) Senescent phase.

Answer: The senescent phase refers to the post-reproductive phase in which an organism not just loses its reproductive potential but also the rate of metabolism slows down and there is deterioration of vital activities of the body.

Q9. Higher organisms have resorted to sexual reproduction in spite of its complexity. Why?

Answer: Higher organisms have resorted to sexual reproduction because sexual reproduction enables these organisms to survive during unfavorable conditions. It tends to induce genetic variability in these organisms which further becomes a cause of the evolution of
better-adapted species.

Q10. Explain why meiosis and gametogenesis are always interlinked?

Answer: Meiosis refers to the cell division which causes a reduction in the number of chromosomes by half and gametogenesis is the formation of male and female gametes. These two terms are often interlinked because gamete formation in diploid organisms occurs through meiosis only. The number of chromosomes in diploid organisms must be reduced to half because if this doesn’t happen then the zygote after fertilisation would have 4n ploidy. Thus, gametogenesis and meiosis are interlinked.

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