ISC (Science) ISC Class 12 - CISCE Question Bank Solutions for Biology (Theory)

Give one main application of ECG

If the haploid number of chromosomes in a plant species is 20, how many chromosomes will be
present in the cells of the shoot tip?

Give one significant contribution of the given scientist

E. Wilson

Give one significant difference between Benign tumour and malignant tumour

Draw a labelled diagram of L.S. of human testis.

Study the table given below. Do not copy the table, but write the answers in the correct order

Define Spermatogenesis.

Define Reproductive health

Define Hotspots

Define Ramsar Sites

Define Biodiversity.

Define Eutrophication.

Answer the following question:

Give the full form of EFB.

Answer the following question:

Give the scientific term used for the preservation of germplasm at a very low temperature.

Answer the following question: 

What is a Recon?

Give one significant contribution to the following scientists:

Prof. R. Mishra

Give a reason for the following: 

Bagging is essential in artificial hybridization.

Expand the following abbreviation DPD.

Define the protobionts.

What is cognogeny?