HSC Science (General) १२ वीं कक्षा - Maharashtra State Board Question Bank Solutions for Biology

Define Osmotic pressure.

What is Biofortification? Explain selective breeding with suitable example.

Answer each question in ‘One’ sentence only:

Define stock and scion.

Explain selective breeding. Give any 'two' examples and their nutrients obtained by selective breeding. 

Give an account of mutation breeding with examples.

Describe briefly various steps of plant breeding methods.

Choose the correct option

Which of the following factors will favour species diversity?

Choose the correct option

The term “terror of Bengal’ is used for ___________.

Short answer type question

How does genetic diversity affect the sustenance of a species?

Very Short Answer Question:

Enlist the phases of growth in plants?

Diffused type of nervous system is seen in ______.

Wheat -Atlas 66 has high contents of ______.

A medicinal plant Rauwolfia vomitoria shows variations in concentration of reserpine from location to location. What type of level of biodiversity is this?

Give any four factors that favour high speciation at lower altitudes.

Explain the different properties of water.

Which one of the following is not a fungal disease?

How the resistance in crops can be developed?

Write two varieties of sugarcane having high sugar content.

Name two better yielding varieties of rice developed in India.

Give reason – Water acts as thermal buffer