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12th Biology Weekly Test -1 ( Zoology - Reproduction in Organisms )

St. Britto Hr. Sec. School - Madurai

12th Biology Weekly Test -1 ( Zoology - Reproduction in Organisms )-Aug 2020

Time : 1.30 Hours

Part - A

Multiple Choice Question - Answer All Question

External fertilization is seen is ______

Mammals and birds
Reptiles and sponges
Fishes and birds
Sponges and amphibians

Regeneration is not seen in ______

Starfish
Lizard
Hydra
Sea Anemone

Fragmentation in sea Anemone is also known as _______

morphallaxis
pedal laceration
archaeocytes
epimorphosis

Endogenous buds are seen in ______

Trichonympha
Hydra
Actinosphaerium
Noctiluca

This is the sexual union of young individuals produced immediately after the division of the adult parent cell by mitosis.

Paedogamy
Hologamy
Merogamy
Anisogamy

Plasmotomy is observed in ________

Giant Amoeba
Hydra
Plasmodium
Ceratium

Conjugation is a type of ______

Asexual reproduction
Autogamy
External fertilization
Sexual reproduction

The gravid proglottids are cut off from the parent body in ______

Tapeworm (Taenia solium)
Liver fluke
Planaria
Blood fluke

__________ refers to the fusion of small sized, morphologically different gametes.

Isogamy
Hologamy
Paedogamy
Merogamy

In which mode of reproduction variations are seen

Asexual
Parthenogenesis
Sexual
Both a and b

Part - B

Generic 2 - Answer All Question

What is epimorphosis?
Define regeneration mention the types.

Name the types of natural parthenogenesis.

Mention the types of asexual reproduction seen in amoeba.

What is merogamy?

What are exogenous buds?

Part - C

Generic 3 - Answer All Question

Why is conjugation considered to be a form of reproduction though there is no formation of a new individual?
What is strobilation?

Give reasons for the following:
(a) Some organisms like honey bees are called parthenogenetic animals
(b) A male honey bee has 16 chromosomes where as its female has 32 chromosomes

Explain multiple fission in plasmodium.

Describe the different phases of life cycle in an organism.

Explain the types of fertilization depending on the place of occurrence.

Part - D

Generic 5 - Answer All Question

Write a note on regeneration.

Differentiate between the following:
(a) Binary fission in amoeba and multiple fission in Plasmodium
(b) Budding in yeast and budding in Hydra
(c) Regeneration in lizard and Planaria

Write notes on binary fission in animals.
What is the difference between syngamy and fertilization?

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