हिंदी
Tamil Nadu Board of Secondary EducationHSC Science कक्षा १२

HSC Science कक्षा १२ - Tamil Nadu Board of Secondary Education Question Bank Solutions for Biology (Botany and Zoology)

Advertisements
[object Object]
[object Object]
विषयों
मुख्य विषय
अध्याय
Advertisements
Advertisements
Biology (Botany and Zoology)
< prev  141 to 160 of 235  next > 

Mention any two ways in which single nucleotide polymorphism (SNPs) identified in human genome can bring revolutionary change in biological and medical science.

[2.05] Molecular Genetics
Chapter: [2.05] Molecular Genetics
Concept: undefined >> undefined

All populations in a given physical area are defined as ________.

[2.1] Organisms and Populations
Chapter: [2.1] Organisms and Populations
Concept: undefined >> undefined

Advertisements

Give the diagnostic characters features of a Biome?

[2.1] Organisms and Populations
Chapter: [2.1] Organisms and Populations
Concept: undefined >> undefined

Classify the aquatic biomes of Earth.

[2.1] Organisms and Populations
Chapter: [2.1] Organisms and Populations
Concept: undefined >> undefined

Differentiate between Tundra and Taiga Biomes.

[2.1] Organisms and Populations
Chapter: [2.1] Organisms and Populations
Concept: undefined >> undefined

List the adaptations seen in terrestrial animals.

[2.1] Organisms and Populations
Chapter: [2.1] Organisms and Populations
Concept: undefined >> undefined

Alien species invasion is a threat to endemic species - substantiate this statement.

[2.11] Biodiversity and Its Conservation
Chapter: [2.11] Biodiversity and Its Conservation
Concept: undefined >> undefined

Mention the major threats to biodiversity caused by human activities. Explain.

[2.11] Biodiversity and Its Conservation
Chapter: [2.11] Biodiversity and Its Conservation
Concept: undefined >> undefined

In north eastern states, the jhum cultivation is a major threat to biodiversity - substantiate the statement.

[2.11] Biodiversity and Its Conservation
Chapter: [2.11] Biodiversity and Its Conservation
Concept: undefined >> undefined

The time duration for sterilization process by using autoclave is ______ minutes and the temperature is _______

[1.05] Plant Tissue Culture
Chapter: [1.05] Plant Tissue Culture
Concept: undefined >> undefined

Cryopreservation means it is a process to preserve plant cells, tissues, or organs

[1.05] Plant Tissue Culture
Chapter: [1.05] Plant Tissue Culture
Concept: undefined >> undefined

Give an account on Cryopreservation.

[1.05] Plant Tissue Culture
Chapter: [1.05] Plant Tissue Culture
Concept: undefined >> undefined

What do you know about Germplasm conservation? Describe it.

[1.05] Plant Tissue Culture
Chapter: [1.05] Plant Tissue Culture
Concept: undefined >> undefined

Match column I (crop) with column II (Corresponding disease-resistant variety) and select the correct option from the given codes.

Column I Column II
I) Cowpea i) Himgiri
II) Wheat ii) Pusa Komal
III) Chilli iii) Pusa Sadabahar
IV) Brassica iv) Pusa Swarnim
[1.09] Plant Breeding
Chapter: [1.09] Plant Breeding
Concept: undefined >> undefined

Match List I with List II

List I List II
Biofertilizer Organisms
i) Free-living N2 a) Aspergillus
ii) Symbiotic N2 b) Amanita
iii) P Solubilizing c) Anabaena azollae
iv) P Mobilizing d) Azotobactor
[1.09] Plant Breeding
Chapter: [1.09] Plant Breeding
Concept: undefined >> undefined

How are microbial innoculants used to increase soil fertility?

[1.09] Plant Breeding
Chapter: [1.09] Plant Breeding
Concept: undefined >> undefined

Totipotency refers to

[1.05] Plant Tissue Culture
Chapter: [1.05] Plant Tissue Culture
Concept: undefined >> undefined

The foetal membrane that forms the basis of the umbilical cord is ____________.

[2.02] Human Reproduction
Chapter: [2.02] Human Reproduction
Concept: undefined >> undefined

Placenta is an endocrine tissue. Justify.

[2.02] Human Reproduction
Chapter: [2.02] Human Reproduction
Concept: undefined >> undefined

Name the hormones produced from the placenta during pregnancy.

[2.02] Human Reproduction
Chapter: [2.02] Human Reproduction
Concept: undefined >> undefined
< prev  141 to 160 of 235  next > 
Advertisements
Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×