Question

In a raceme, the flowers are
A. Arranged in a basipetal succession
B. Arranged in an acropetal succession
C. Of separate sexes
D. Of same sex

Answer 1

Hint:-The position of whorls of flowers on a stem is called inflorescence. The stem on which the complete inflorescence is succeeded is called a peduncle .the major axis is use keeps the flowers or branches within the inflorescence

Complete answer:The stalk or attaching organ of the flower is called a pedicel. Solitary flowers are the flowers which are not a part of inflorescence and its stalk is also called peduncle. The flowers in an inflorescence are usually known as a floret, the individual flowers are small and form a tight cluster and group Inflorescences may be simple, composite, umbel, spike or raceme.
Now let us gather some information about given options:-
Arranged in a basipetal succession :- in this type the oldest flowers born on the new shoot and new flowers are present at the base . It usually occurs in the cymose inflorescence . This type of inflorescence is seen in jasmine
Arranged in an acropetal succession :- in this type the oldest flowers born on the base and new flowers are present at the apex of the shoot . It usually occurs in the racemose inflorescence . This type of inflorescence is seen in Mango and Gulmohar
Of separate sexes :- when separate sexes are present in flower it is called as unisexual flower that is it contains only one sex either male or female . This is seen in papaya and watermelon
of same sex :- this condition is called as bisexual condition. In this type the flower contains both the sexes in the same plant. This ensures self pollination . This is seen in lilies and sunflowers


Our required option is b that is Arranged in an acropetal succession

Note:- Racemose inflorescence is an indeterminate type of inflorescence in which the flowers mature from bottom to top. In this type of inflorescence, the central axis proceeds to grow and the flowers at the bottom mature earlier than those on the top.