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Sexual Reproduction in Flowering Plants MCQs

Class XII Biology • NCERT Based • NEET Practice

📘 Concept Based 📝 Exam Level 🤖 AI Explanations

Question 171 of 501

📘 CLASS XII

The dormant state of a seed is characterized by:

The general metabolic activity of the embryo slows down. The embryo may enter a state of inactivity called dormancy.

Question 172 of 501

📘 CLASS XII

The wall of the fruit is called:

The wall of the ovary develops into the wall of fruit called pericarp.

Question 173 of 501

📘 CLASS XII

Strawberry is a false fruit because:

In a few species such as apple, strawberry... the thalamus also contributes to fruit formation. Such fruits are called false fruits.

Question 174 of 501

📘 CLASS XII

A banana is an example of:

Parthenocarpic fruits. Banana is one such example.

Question 175 of 501

📘 CLASS XII

Which orchid fruit contains thousands of tiny seeds?

Orchid fruits are one such category and each fruit contain thousands of tiny seeds.

Question 176 of 501

📘 CLASS XII

Nucellar polyembryony is common in:

More often, as in many Citrus and Mango varieties... develop into the embryos.

Question 177 of 501

📘 CLASS XII

Use of apomictic seeds in agriculture is beneficial because:

If these hybrids are made into apomicts, there is no segregation of characters... farmers can keep on using the hybrid seeds.

Question 178 of 501

📘 CLASS XII

Which part of the stamen is attached to the thalamus?

The proximal end of the filament is attached to the thalamus or the petal.

Question 179 of 501

📘 CLASS XII

The anther is generally:

A typical angiosperm anther is bilobed.

Question 180 of 501

📘 CLASS XII

How many microsporangia are found in a typical dithecous anther?

The anther is a four-sided (tetragonal) structure consisting of four microsporangia.