HSC Science (General) 12th Standard Board Exam - Maharashtra State Board Question Bank Solutions

Write full form of

1. IUCN
2. NBA

Draw a neat and labelled diagram of transcription and processing of hn-RNA

Describe the mechanism of translation with the help of neat and labelled diagram.

A farmer is fed up of weeds in his Wheat farm. Which of the following chemicals he can use to overcome the problem?

Gibberellins are synthesised from ______.

First natural cytokinin was obtained from ______.

Buyers often complain that a particular fruit merchant uses some chemical to ripen fruits in his shop.

Name the chemical he must be using to do so.

Why is ABA known as antitranspirant?

Name the tissue that transports hormones within the plant body?

Match the column A with B

A gardener wants to give bushy appearance to plants in our college campus.

1. What should he do to achieve the same? 
2. Which property of phytohormones he must be aware of?

Write the name of______

1. First hormone discovered in plants.
2. Biological name of fungus from which Gibberellins were first isolated. 
3. The name given to the first cytokinin by Skoog and Miller.

Write the name of Hormone that can overcome the requirement of vernalization.

Name the phytohormone related with the given phenomenon.

1. Apical dominance
2. Bolting of Cabbage 
3. Artificial ripening of fruit
4. Acts as Anti-transpirant by closing stomata

Write full form of  2,4-D

From the given diagram, identify the type of population growth curve:

What do you mean by pioneer species?

Name various seral stages from pioneer species to climax community with suitable examples in hydrarch succession.

Describe the different communities involved in the process of succession.

Describe the process of transcription.