Question

In several fungi and plants the bisexual condition is denoted by
A. Homothallic and monoecious
B. Heterothallic and Monoecious
C. Homothallic and dioecious
D. Heterothallic and dioecious

Answer 1

Hint:-Fungi is a group of multicellular organisms , which are eukaryotic in nature, that is they have well defined organelles and nucleus. Some unicellular fungi are also present as that of yeast. Plants are eukaryotic and multicellular organisms . They possess alternation of generation.

Complete answer:Fungi and plants may be unisexual and bisexual that is they may different sexes and may have same sexes in a single individual respectively. Plants which are bisexual ensures self pollination as they have both male and female sexes in a single individual.
Now let us gather some information about given options :-
Homothallic and monoecious :- when male and female organs are present in the same fungi they are termed as homothallic fungi . It is seen in puccinia . When male and female organs are present in the same plant it is called monoecious plant . It is seen in chara and coconut
Heterothallic and Monoecious :- when male and female organs are present in different thalli of fungi they are termed as heterothallic fungi. It is seen in Neurospora crassa members of basidiomycetes .
Homothallic and dioecious :- unisexual plants are also called as dioecious . When either male or only female is present in the plant it is called as dioecious plants . It is seen in Gingko and Spinach .
Heterothallic and dioecious :- when male and female organs are present in different thalli of fungi they are termed as heterothallic fungi. unisexual plants are also called as dioecious . When either male or only female is present in the plant it is called as dioecious plants .


Our required option is A that is Homothallic and Monoecious.

Note:- In plants when male and female reproductive individuals occur in the same plant it can ensure autogamy or geitonogamy. When a plant is unisexual that is have male and female reproductive organs in different plants it ensures xenogamy and require agent to pollinate flowers such as wind , water and insects.