Practicing Success

Target Exam

CUET

Subject

Biology

Chapter

Sexual Reproduction in Flowering Plants

Question:

Which among the following statements are correct :

(A) The hard seed coat provides protection to the young embryo.

(B) Fruit  is the basis of our agriculture.

 (C) The oldest viable seeds  is that of a lupine, Lupinus arcticus excavated from Arctic Tundra.

(D) Dehydration and dormancy of mature seeds are not important  for storage of seeds which can be used as food throughout the year and also to raise crop in the next season .

(E) In Asteraceae and grasses,  seeds  are produced without fertilisation, called apomixis.

Options:

A, B and D only 

A ,C , D and E 

C , D and E 

A,C and E only

Correct Answer:

A,C and E only

Explanation:

The correct option is 4 . A,C and E only

  • The hard seed coat provides protection to the young embryo.
  • Seed is the basis of our agriculture. Seed is the basis of our agriculture.
  • Dehydration and dormancy of mature seeds are crucial for storage of seeds which can be used as food throughout the year and also to raise crop in the next season.  
  • A  few flowering plants such as some species of Asteraceae and grasses, have evolved a special mechanism, to produce seeds without fertilisation, called apomixis. 
  • Some seeds can remain alive for hundreds of years. There are several records of very old yet viable seeds. The oldest is that of a lupine, Lupinus arcticus excavated from Arctic Tundra.
  • The seed germinated and flowered after an estimated record of 10,000 years of dormancy. A recent record of 2000 years old viable seed is of the date palm, Phoenix dactylifera discovered during the archeological excavation at King Herod’s palace near the Dead Sea.