English
Karnataka Board PUCPUC Science 2nd PUC Class 12

Collect Five Bisexual Flowers from Your Neighborhood and with the Help of Your Teacher Find Out Their Common and Scientific Names. - Biology

Advertisements
Advertisements

Question

Collect five bisexual flowers from your neighborhood and with the help of your teacher find out their common and scientific names.

Solution 1

Examples of plants bearing bisexual flowers are

(1) Water lily ( Nymphaea odorata)

(2) Rose (Rosa multiflora )

(3) Hibiscus (Hibiscus Rosa-sinensis )

(4) Mustard ( Brassica nigra)

(5) Petunia (Petunia hybrida)

shaalaa.com

Solution 2

You can observe following bisexual flowers in your kitchen and colony gardens :

(1)Brassica (sarson) – Brassica campestris

(2)Onion – Allium cepa

(3)Garden Pea (Edible pea) – Pisum sativum

(4)Petunia – Petunia hybrida

(5)China rose (shoe flower) – Hibiscus rosa- sinensis

shaalaa.com
  Is there an error in this question or solution?
Chapter 1: Reproduction in Organisms - Exercises [Page 18]

APPEARS IN

NCERT Biology [English] Class 12
Chapter 1 Reproduction in Organisms
Exercises | Q 16 | Page 18

Video TutorialsVIEW ALL [1]

RELATED QUESTIONS

(a) Coconut palm is monoecious, while date palm is dioecious. Why are they so called?


A liverwort plant is unable to complete its life cycle in a dry environment. State two reasons


Explain the importance of syngamy and meiosis in a sexual life cycle of an organism.


Mention the ploidy of the different types of cells present in the female gametophyte of an angiosperm.


The following question(s)/statement(s) has four suggested answers. Choose the correct option in the following case.

After fertilisation, the integuments of an ovule develop into : __________.


The terms homothallic and monoecious are used to denote ______.


Syngamy means ______.


Meiosis is best observed in dividing ______.


In oogamy, fertilization involves ______.


In meiosis, division is ______.


Meiosis takes place in ______.


Pre-fertilization events include the following?

  1. Gametogenesis
  2. Zygotic embryogenesis
  3. Gamete transfer
  4. Homogametic union
  5. Heterogametic union

The correct combination is ______


Gamete transfer occurs through water in all of the following except:


Is the presence of large number of chromosomes in an organism a hindrance to sexual reproduction? Justify your answer by giving suitable reasons.


Which of the followings are monoecious and dioecious organisms?

a. Earthworm ______
b. Chara ______
c. Marchantia ______
d. Cockroach ______

In haploid organisms that undergo sexual reproduction, name the stage in the life cycle when meiosis occurs. Give reasons for your answer.


Do all the gametes formed from a parent organism have the same genetic composition (identical DNA copies of the parental genome)? Analyse the situation with the background of gametogenesis and provide or give suitable explanation.


Define perisperm.


Fertilisation is the key process in sexually reproducing organisms and it acts as a vital link between two generations. Flowering plants adopt a unique pattern of sexual reproduction as compared to other organisms.
  1. Explain the process of fertilisation in angiosperms.
  2. What is the precise location and function of filiform apparatus in the embryo sac of angiosperms?
  3. Fruits and seeds are generally formed due to fertilisation. Name the process involved in the production of the following without fertilisation:
    1. Fruits
    2. Seeds

Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×