English
Tamil Nadu Board of Secondary EducationHSC Science Class 12

HSC Science Class 12 - Tamil Nadu Board of Secondary Education Question Bank Solutions

Advertisements
[object Object]
[object Object]
Subjects
Popular subjects
Topics

Please select a subject first

Advertisements
Advertisements
< prev  4781 to 4800 of 4880  next > 

Differentiate between Tundra and Taiga Biomes.

[11] Organisms and Populations
Chapter: [11] Organisms and Populations
Concept: undefined >> undefined

List the adaptations seen in terrestrial animals.

[11] Organisms and Populations
Chapter: [11] Organisms and Populations
Concept: undefined >> undefined

Advertisements

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

[12] Biodiversity and Its Conservation
Chapter: [12] Biodiversity and Its Conservation
Concept: undefined >> undefined

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

[12] Biodiversity and Its Conservation
Chapter: [12] Biodiversity and Its Conservation
Concept: undefined >> undefined

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

[12] Biodiversity and Its Conservation
Chapter: [12] Biodiversity and Its Conservation
Concept: undefined >> undefined

Haemophilia is more common in males because it is a ____________.

[4] Principles of Inheritance and Variation
Chapter: [4] Principles of Inheritance and Variation
Concept: undefined >> undefined

Father of a child is colourblind and mother is carrier for colourblindness, the probability of the child being colourblind is ____________.

[4] Principles of Inheritance and Variation
Chapter: [4] Principles of Inheritance and Variation
Concept: undefined >> undefined

A marriage between a colourblind man and a normal woman produces ____________.

[4] Principles of Inheritance and Variation
Chapter: [4] Principles of Inheritance and Variation
Concept: undefined >> undefined

What is criss-cross inheritance?

[4] Principles of Inheritance and Variation
Chapter: [4] Principles of Inheritance and Variation
Concept: undefined >> undefined

Why are sex linked recessive characters more common in the male human beings?

[4] Principles of Inheritance and Variation
Chapter: [4] Principles of Inheritance and Variation
Concept: undefined >> undefined

What are holandric genes?

[4] Principles of Inheritance and Variation
Chapter: [4] Principles of Inheritance and Variation
Concept: undefined >> undefined

Explain the inheritance of sex-linked characters in human being.

[4] Principles of Inheritance and Variation
Chapter: [4] Principles of Inheritance and Variation
Concept: undefined >> undefined

Write short notes on the following:

Ideonella sakaiensis

[9] Microbes in Human Welfare
Chapter: [9] Microbes in Human Welfare
Concept: undefined >> undefined

What is bioremediation?

[9] Microbes in Human Welfare
Chapter: [9] Microbes in Human Welfare
Concept: undefined >> undefined

Transgenic animals are those which have ____________.

[10] Applications of Biotechnology
Chapter: [10] Applications of Biotechnology
Concept: undefined >> undefined

What are transgenic animals?

[10] Applications of Biotechnology
Chapter: [10] Applications of Biotechnology
Concept: undefined >> undefined

It is established that RNA is the first genetic material. Explain giving three reasons.

[5] Molecular Genetics
Chapter: [5] Molecular Genetics
Concept: undefined >> undefined

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

[2] Human Reproduction
Chapter: [2] Human Reproduction
Concept: undefined >> undefined

Placenta is an endocrine tissue. Justify.

[2] Human Reproduction
Chapter: [2] Human Reproduction
Concept: undefined >> undefined

Name the hormones produced from the placenta during pregnancy.

[2] Human Reproduction
Chapter: [2] Human Reproduction
Concept: undefined >> undefined
< prev  4781 to 4800 of 4880  next > 
Advertisements
Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×