When two different genes came from same parent they tend to remain together.
i) What is the name of this phenomenon?
ii) Draw the cross with suitable example.
iii) Write the observed phenotypic ratio.

If you cross dominant genotype PV/PV male Drosophila with double recessive female and obtain F₁ hybrid. Now you cross F₁ male with double recessive female.
i) What type of linkage is seen?
ii) Draw the cross with correct genotype.
iii) What is the possible genotype in F₂ generation?

Write the salient features of Sutton and Boveri concept.

How is Nicotiana exhibit self-incompatibility. Explain its mechanism.

How sex is determined in monoecious plants. write their genes involved in it.

What is gene mapping? Write its uses

Draw the diagram of different types of aneuploidy.

Mention the name of man-made cereal. How it is formed?