Function of filiform apparatus is to
recognise the suitable pollen at the stigma
stimulate the division of generative cell
produce nectar
produce nectar
D.
produce nectar
Filliform apparatus is the finger-like projections of synergids which help in the absorption and conduction of food materials from the nucleus into embryo sac and directs the pollen tube towards embryo sac by secreting some chemicals.
Fruit colour in squash is an example of
recessive epistasis
dominant epistasis
complementary genes
complementary genes
The first human hormone produced by recombinant DNA technology is
insulin
estrogen
thyroxin
thyroxin
Which one of the following a wrongly matched?
Transcription - Writing information from DNA to t-RNA
Translation - Using information in m - RNA to make protein
Repressor protein - Binds to operator to stop enzyme synthesis
Repressor protein - Binds to operator to stop enzyme synthesis
Pollen tablets are available in the market for
In vitro fertilisation
breeding programmes
supplementing food
supplementing food
Which one of the following shows coiled RNA stands and capsomeres?
Polio virus
Tabacco mosaic virus
Measles virus
Measles virus
An analysis of chromosomal DNA using the Southern hybridization technique does not use
electrophoresis
blotting
autoradiography
autoradiography
Geitonogamy involves
Fertilisation of a flower by the pollen from another flower of the same plant
Fertilisation of a flower by the pollen from the same flower
Fertilisation of a flower by the pollen from a flower of another plant in the same population
Fertilisation of a flower by the pollen from a flower of another plant in the same population
