Write the name of the organism that is referred to as the ...
What are 'true breeding lines' that are used to stud...
Name any two types of cells that act as 'cellular barrie...
Mention the type of host cells suitable for the gene guns to...
How is 'stratification' represented in a forest ecos...
Give an example of an organism that enters 'diapause'...
Identify 'a' and 'b' in the figure given bel...
State the cause of accelerated eutrophication.
Why do algae and fungi shift to sexual mode of reproduction ...
A cross was carried out between two pea plants showing the c...
How does the gene 'I' control ABO blood groups in hu...
(i) Name the scientist who suggested that the genetic code s...
Explain with the help of a suitable example the naming of a ...
State how has Agrobacterium tumifaciens been made a useful c...
Apart from being a part of the ...
Construct an age pyramid which reflects a stable growth stat...
How are 'sticky ends' formed on a DNA strand? Why ar...
Explain any three advantages that seeds offer to angiosperms...
Name and explain the role of the inner and middle walls of t...
A colour-blind child is born to...
Women are often blamed for prod...
(a) Name the tropical sugar cane variety grown in South Indi...
Why are beehives kept in a crop field during flowering perio...
How did the process of RNA inte...
Study the graph given below and answer the questions that fo...
(a) Coconut palm is monoecious,...
(a) Explain the process of DNA ...
(a) Name the technology that has ...
Identify 'a' and 'b' in the figure given below representing proportionate number of major vertebrate taxa.
In the given figure, a represents amphibians and b represents mammals.
What is menstrual cycle? Which hormones regulate menstrual cycle?
Mention two strategies evolved to prevent self-pollination in flowers.