Prepare for NEET with Botany-specific practice questions. Covering all major Botany chapters, this is perfect for your NEET Biology needs.
A flower has its ovary positioned above the point of attachment of petals, sepals, and stamens. This flower is said to have a __________ ovary and a __________ flower.
superior, hypogynous
inferior, epigynous
perigynous, perigynous
half-inferior, half-superior
The feature not related to family Solanaceae is
Persistant calyx
Epipetalous condition of androecium
Swollen placenta
Incomplete flower with Perianth
A hyaline bisexual and self-fertilized flower that does not open at all, is
Chasmogamous
Apogamous
Cleistogamous
Polygamous
Cyathium inflorescence shows
Scorpioid cyme showing central female, many peripheral male flowers
Scorpioid cyme showing central male, many peripheral female flowers
Dichasial cyme showing two whorls of 3 to 9 flower
Dichasial cyme showing two whorls, one of male and another of female flowers
When the other floral parts are arranged at the base of the gynoecium, the flower is called
Hypogynous flower
Perigynous flower
Epigynous flower
Agynous flower
When the other floral parts are arranged at the base of the gynoecium, the flower is called
Hypogynous flower
Perigynous flower
Epigynous flower
Agynous flower
Which one of the following is an example of cleistogamy?
Sunflower
Vallisneria
Commelina
Calotropis
A bisexual flower which never open, is known as
Autogamous
Cleistogamous
Homogamous
Allogamous
Identify the characters with reference to the plant in which eight nucleated embryo sac was first studied by strasburger.
I – Micropyle, chalaza and funiculus are arranged in the same vertical line
In the ovule.
II – presence of both unisexual and bisexual flowers in the same plant.
III – Filiform apparatus helps in conduction of food materials from
Endosperm to egg apparatus.
IV – Long funiculus coils like a watch spring around the ovule.
I and IV
II and III
I and II
III and IV
Which of the following statement is true with reference to cross pollination in angiosperms?
It requires the production of a large number of pollen grains
It can fail to occur due to distance barrier
It occurs only in unisexual flowers
It most often results in high yield of plants
