Explain the three kinds of plants that have recessive lethal gene in Antirrhnum sp.

Name the three important developments that have been made by the seed plants.

The gene responsible for _______ is inherited as an autosomal recessive lethal gene in man

The three traits which are controlled by a single pleiotropic gene having dominant and recessive alleles in Pisum sativum.

In plant breeding programmes, the entire collection (of plants/seeds) having all the diverse alleles for all genes in a given crop is called:

Explain clearly. A plant may have different names in different regions of the country or world. How do botanists solve this problem?

In plant breeding programmes, the entire collection (of plants / seeds) having all the diverse alleles for all genes in a given crop is called

Explain genetically modified organisms (GMOS] (b) With the help of a tabular column tabulate the genetically modified plants and animals, with the objectives, gene inserted and achievement.

ln plant gene ‘A’ is responsible for tallness and its recessibe allele 'a’ for ariness and 'B' is responsible for red colour to recessive allele 'b' for hite flower colour. A tall and red flowered plant with genotype Aabb crossed with dwarf and red flowers (aaBb). What is the percentage of dwarf white flowered off spring of above cross?

You have been deputed by your school Principal to train local village in the use of biogas plant. With the help of a labelled sketch explain the various parts of the biogas plant.

Some flowers are highly modified to insect pollination . They have many features which help this kind of pollination . (a) What are these flowers called as ? (b) Explain the characters which make them suitable for this type of pollination .