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Chapters
2: Human Reproduction
3: Reproductive Health
4: Principles of Inheritance and Variation
5: Molecular Genetics
6: Evolution
7: Human Health and Diseases
8: Microbes in Human Welfare
9: Applications of Biotechnology
10: Organisms and Populations
11: Biodiversity and its Conservation
12: Environmental Issues
![Samacheer Kalvi solutions for Biology (Zoology) [English] Class 12 TN Board chapter 1 - Reproduction in Organisms - Shaalaa.com](/images/biology-zoology-english-class-12-tn-board_6:5f2b1b2038084cf381bfa42c826a928c.jpg "Samacheer Kalvi solutions for Biology (Zoology) [English] Class 12 TN Board chapter 1 - Reproduction in Organisms")
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Solutions for Chapter 1: Reproduction in Organisms
Below listed, you can find solutions for Chapter 1 of Tamil Nadu Board of Secondary Education Samacheer Kalvi for Biology (Zoology) [English] Class 12 TN Board.
Samacheer Kalvi solutions for Biology (Zoology) [English] Class 12 TN Board 1 Reproduction in Organisms Evaluation [Pages 8 - 9]
In which type of parthenogenesis are only males produced?
Arrhenotoky
Thelytoky
Amphitoky
Both a and b
The mode of reproduction in bacteria is by ______
Formation of gametes
Endospore formation
Conjugation
Zoospore formation
In which mode of reproduction variations are seen?
Asexual
Parthenogenesis
Sexual
Both Asexual and Parthenogenesis
Assertion and reasoning questions
In the following question, there are two statements. One is the assertion (A) and the other is reasoning (R). Mark the correct answer as
- Assertion: In-bee society, all the members are diploid except drones.
- Reason: Drones are produced by parthenogenesis.
A B C D
If both A and R are true and R is the correct explanation for A.
If both A and R are true but R is not the correct explanation for A.
If A is true but R is false.
If both A and R are false.
In the following question, there are two statements. One is the assertion (A) and the other is reasoning (R). Mark the correct answer as
- Assertion: Offsprings produced by asexual reproduction are genetically identical to the parent.
- Reason: Asexual reproduction involves only mitosis and no meiosis.
A B C D
If both A and R are true and R is the correct explanation for A.
If both A and R are true but R is not the correct explanation for A.
If A is true but R is false.
If both A and R are false.
Name an organism where cell division is itself a mode of reproduction.
Name the phenomenon where the female gamete directly develops into a new organism with an avian example.
What is parthenogenesis? Give two examples from animals
Which type of reproduction is effective - Asexual or sexual and why?
The unicellular organisms which reproduce by binary fission are considered immortal. Justify.
Why is the offspring formed by asexual reproduction referred to as clones?
Give reason for the following:
Some organisms like honey bees are called parthenogenetic animals
Give reason for the following:
A male honey bee has 16 chromosomes whereas a female has 32 chromosomes.
Differentiate between the following:
Binary fission in amoeba and multiple fission in Plasmodium
Differentiate between the following:
Budding in yeast and budding in Hydra
Differentiate between the following:
Regeneration in lizard and Planaria
How is juvenile phase different from reproductive phase?
What is the difference between syngamy and fertilization?
Solutions for 1: Reproduction in Organisms
Samacheer Kalvi solutions for Biology (Zoology) [English] Class 12 TN Board chapter 1 - Reproduction in Organisms
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Concepts covered in Biology (Zoology) [English] Class 12 TN Board chapter 1 Reproduction in Organisms are Types of Reproduction, Asexual Reproduction, Sexual Reproduction in Animals.
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