CBSE - How do Organisms Reproduce

1 How do Organisms Reproduce 

Identify the correct statement from below

(1) The Zygote develops into embryo-sac
(2) Synergids are situated near the chalazal end of embryosac
(3) Mature embryo-sac has eight cells
(4) Secondary nucleus in a mature embryo-sac is diploid

2 How do Organisms Reproduce 

Which one of the following is involved in the formation of endosperm?

(1) Antipodal cell 
(2) Polar nucleus
(3) Synergids 
(4) Eggcell

3 How do Organisms Reproduce 

The cell-division which is also known as reduction cell-division is …

(1) Fission 
(2) Meiosis 
(3) Mitosis 
(4) Amitosis

4 How do Organisms Reproduce 

Ramu collected epiphyllous buds from a plant.  The plant from which he has collected these buds could be ….

(1) Murraya 
(2) Bryophyllum 
(3) Neem 
(4) Hibuscus

5 How do Organisms Reproduce 

Chromosome number in the daughter cells after meiosis is
(1) 1/2 (2) 1/3 (3)1/4 (4) 1/5

6 How do Organisms Reproduce 

Characters transmitted from parents to offspring are present in
(1) Cytoplasm (2) Ribosome (3) Golgi Bodies (4) Genes

7 How do Organisms Reproduce 

How many ovules might have been fertilized t o produce 100 seeds in a water melon ?
(1) 25 (2) 50 (3) 100 (4) 125

8 How do Organisms Reproduce 

Isogamy, Aniosogamy and Oogamy types of sexual reproduces occur in

(1) Muncor Sp
(2) Monocystis Sp
(3) Spirogyra Sp
(4) Chlamydomonous Sp

9 How do Organisms Reproduce 

Which of the following modes of asexual reproduction is observed in Hydra ?

(1) Binary fission and budding
(2) Multiple fission and regeneration
(3) Regeneration and budding
(4) Budding and fragmentation

10 How do Organisms Reproduce 

Endosperm is ......

(1) 2n
(2) 3n
(3) 4n
(4)n