Question

An orthotropus ovule is one in which micropyle and chalaza are

in straight line of funiculus

parallel of funiculus

at right angles to funiculus

oblique to funiculus

Solution

in straight line of funiculus

Orthotropous ovule is also called atropous. In this type of ovule the micropyle, chalaza and funicle lie in one straight line, e.g., Polygonaceae, Piperaceae etc.

Some More Questions From Sexual Reproduction in flowering Plants Chapter

Development of embryo from any cell of nucellus is called :

Parthenocarpic fruit is :

The entry of pollen tube into embryo sac through the integuments is termed as :

512 microspores will be formed following meiosis of how many microspore mother cells.

Pollination by water occurs in :

In ................... flowers, the thalamus grows upwards completely enclosing the ovary, and the stamens, petals and sepals are borne above the ovary.

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Sexual Reproduction In Flowering Plants

An orthotropus ovule is one in which micropyle and chalaza are

in straight line of funiculus

parallel of funiculus

at right angles to funiculus

oblique to funiculus

Some More Questions From Sexual Reproduction in flowering Plants Chapter

Development of embryo from any cell of nucellus is called :

Parthenocarpic fruit is :

The entry of pollen tube into embryo sac through the integuments is termed as :

512 microspores will be formed following meiosis of how many microspore mother cells.

Pollination by water occurs in :

In ................... flowers, the thalamus grows upwards completely enclosing the ovary, and the stamens, petals and sepals are borne above the ovary.

In Calotropis, all the microspores of anther lobe remain united to form

Albuminous seeds store reserve food materials in ....................

Transfer of pollen grains from the anther to the stigma of another flower of same plant is called..............................

The...................direct the growth of pollen tube towards egg apparatus by secreting some chemical substances.

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NCERT Sample Papers

Entrance Exams Preparation

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For Daily Free Study Material Join wiredfaculty

Sexual Reproduction In Flowering Plants

An orthotropus ovule is one in which micropyle and chalaza are in straight line of funiculus parallel of funiculus at right angles to funiculus oblique to funiculus

Some More Questions From Sexual Reproduction in flowering Plants Chapter

Development of embryo from any cell of nucellus is called :

Parthenocarpic fruit is :

The entry of pollen tube into embryo sac through the integuments is termed as :

512 microspores will be formed following meiosis of how many microspore mother cells.

Pollination by water occurs in :

In ................... flowers, the thalamus grows upwards completely enclosing the ovary, and the stamens, petals and sepals are borne above the ovary.

In Calotropis, all the microspores of anther lobe remain united to form

Albuminous seeds store reserve food materials in ....................

Transfer of pollen grains from the anther to the stigma of another flower of same plant is called..............................

The...................direct the growth of pollen tube towards egg apparatus by secreting some chemical substances.

Mock Test Series

NCERT Sample Papers

Entrance Exams Preparation

An orthotropus ovule is one in which micropyle and chalaza are

in straight line of funiculus

parallel of funiculus

at right angles to funiculus

oblique to funiculus