Answer
424.8k+ views
Hint: Fertilization occurs when one of the sperm cells fuses with the egg inside of an ovule. After fertilization each ovule develops into a seed series of events that takes place after fertilization to develop a seed from an ovule and fruit from the ovary.
Complete Answer:
Development of an endosperm and embryo, maturation of ovules into seeds and ovary into fruits takes place after fertilization. The events that take place after fertilization in flowering plants are as follows:
1. Endosperm development precedes embryo development. The primary endosperm cell divides repeatedly to form a triploid endosperm tissue.
2. Embryo develops at the micropylar ends of the embryo sac where the zygote is situated. Zygotes divide only when a certain amount of endosperm is formed. The nutrition for development is provided by endosperm. The zygote gives rise to pro embryo, the globular, heart shaped and natural embryo. Dicot embryo consists of an embryonic axis and two cotyledons and monocots possess only one cotyledon at one end; this cotyledon is called scutellum.
3. Development of a seed-double fertilization in angiosperms triggers the transformation of ovule into a seed. Seeds are formed inside the fruits. A typical seed consists of a seed coat, cotyledon and an embargo axis.
4. Fruit formation – Fruit is formed as a result of cell division and differentiation in the ovary, which is transformed into fruit as a result of stimuli received from pollination as well as developing seed. The wall of ovary develops into a wall of fruit called pericarp which may be fleshy or leathery (guava, cucumber, tomato etc.) and dry (pea, bean, mustard). Pericarp protects the seed and helps in seed dispersal.
Note: Various changes take place after fertilization. It helps to restore the number of chromosomes and zygote develops to form new individuals which is necessary for the continuation of the species. It creates genetic variation.
Complete Answer:
Development of an endosperm and embryo, maturation of ovules into seeds and ovary into fruits takes place after fertilization. The events that take place after fertilization in flowering plants are as follows:
1. Endosperm development precedes embryo development. The primary endosperm cell divides repeatedly to form a triploid endosperm tissue.
2. Embryo develops at the micropylar ends of the embryo sac where the zygote is situated. Zygotes divide only when a certain amount of endosperm is formed. The nutrition for development is provided by endosperm. The zygote gives rise to pro embryo, the globular, heart shaped and natural embryo. Dicot embryo consists of an embryonic axis and two cotyledons and monocots possess only one cotyledon at one end; this cotyledon is called scutellum.
3. Development of a seed-double fertilization in angiosperms triggers the transformation of ovule into a seed. Seeds are formed inside the fruits. A typical seed consists of a seed coat, cotyledon and an embargo axis.
4. Fruit formation – Fruit is formed as a result of cell division and differentiation in the ovary, which is transformed into fruit as a result of stimuli received from pollination as well as developing seed. The wall of ovary develops into a wall of fruit called pericarp which may be fleshy or leathery (guava, cucumber, tomato etc.) and dry (pea, bean, mustard). Pericarp protects the seed and helps in seed dispersal.
Note: Various changes take place after fertilization. It helps to restore the number of chromosomes and zygote develops to form new individuals which is necessary for the continuation of the species. It creates genetic variation.
Recently Updated Pages
How many sigma and pi bonds are present in HCequiv class 11 chemistry CBSE
![arrow-right](/cdn/images/seo-templates/arrow-right.png)
Why Are Noble Gases NonReactive class 11 chemistry CBSE
![arrow-right](/cdn/images/seo-templates/arrow-right.png)
Let X and Y be the sets of all positive divisors of class 11 maths CBSE
![arrow-right](/cdn/images/seo-templates/arrow-right.png)
Let x and y be 2 real numbers which satisfy the equations class 11 maths CBSE
![arrow-right](/cdn/images/seo-templates/arrow-right.png)
Let x 4log 2sqrt 9k 1 + 7 and y dfrac132log 2sqrt5 class 11 maths CBSE
![arrow-right](/cdn/images/seo-templates/arrow-right.png)
Let x22ax+b20 and x22bx+a20 be two equations Then the class 11 maths CBSE
![arrow-right](/cdn/images/seo-templates/arrow-right.png)
Trending doubts
Fill the blanks with the suitable prepositions 1 The class 9 english CBSE
![arrow-right](/cdn/images/seo-templates/arrow-right.png)
At which age domestication of animals started A Neolithic class 11 social science CBSE
![arrow-right](/cdn/images/seo-templates/arrow-right.png)
Which are the Top 10 Largest Countries of the World?
![arrow-right](/cdn/images/seo-templates/arrow-right.png)
Give 10 examples for herbs , shrubs , climbers , creepers
![arrow-right](/cdn/images/seo-templates/arrow-right.png)
Difference between Prokaryotic cell and Eukaryotic class 11 biology CBSE
![arrow-right](/cdn/images/seo-templates/arrow-right.png)
Difference Between Plant Cell and Animal Cell
![arrow-right](/cdn/images/seo-templates/arrow-right.png)
Write a letter to the principal requesting him to grant class 10 english CBSE
![arrow-right](/cdn/images/seo-templates/arrow-right.png)
Change the following sentences into negative and interrogative class 10 english CBSE
![arrow-right](/cdn/images/seo-templates/arrow-right.png)
Fill in the blanks A 1 lakh ten thousand B 1 million class 9 maths CBSE
![arrow-right](/cdn/images/seo-templates/arrow-right.png)