30. Protogyny is the situation when
(a) Anthers mature earlier than the stigmas of the same flower
(b) Anthers mature earlier than the stigmas of another flower
(c) Stigmas mature earlier than the anthers of the same flower
(d) Stigmas mature earlier than the anthers of another flower
Answer: (c) Stigmas mature earlier than the anthers of the same flower
31. In monoecious plants
(a) Male and female parts are borne by different plants
(b) Male and female parts are borne by the same plant but not by the same flower
(c) Male and female parts are borne by the same flower
(d) Male and female flowers are found on separate plants
Answer: (b) Male and female parts are borne by the same plant but not by the same flower
32. In bisexual flowers, when gynoecium matures earlier than the androecium, it is called
(a) Autogamy
(b) Protandry
(c) Heterogamy
(d) Protogyny
Answer: (d) Protogyny
33. Monadelphous condition is related with
(a) Calyx
(b) Corolla
(c) Androecium
(d) Gynoecium
Answer: (c) Androecium
34. Which of the following plants shows free-central placentation?
(a) Argemone
(b) Poppy
(c) Dianthus
(d) Primrose
Answer: (a) Argemone
35. In which of the following, superficial placentation is seen?
(a) Poppy
(b) Argemone
(c) Dianthus
(d) Nymphaea
Answer: (d) Nymphaea
36. When male and female flowers are found on separate plants, the condition is
(a) Monoecious
(b) Dioecious
(c) Heterostylous
(d) Autogamous
Answer: (b) Dioecious
37. The flowers in which androecium and gynoecium are similar are called
(a) Homogamy
(b) Heterogamy
(c) Dichogamy
(d) Xenogamy
Answer: (a) Homogamy
38. Calyx and corolla fused and developed in between the androecium and gynoecium is termed as
(a) Anthophore
(b) Androphore
(c) Gynandrophore
(d) Gynophore
Answer: (a) Anthophore
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