Question

In Pinus, male and female reproductive structures occur
a) On different branches of the same plant
b) On different plants
c) On same branch
d) None of the above

Answer 1

Hint: Although pines are primarily monoecious, with male and female cones in the same tree, several species are sub-dioecious.Pinus is the largest genus in the coniferous Pinaceae family, which is the oldest and largest.

Complete answer:
A pine is a conifer in the Pinus class of the Pinaceae family. Pinus is the sole member of the Pinaceae subfamily. Pine can also be referred to as pine wood. Pine wood is one of the most commonly used wood varieties for timber. Pine trees grow evergreen, with most species reaching 15-45 metres in height, and tall coniferous resinous trees reaching 3-80 metres in height. The tallest is an 81.79-meter-tall ponderosa pine found in South Oregon's Rogue River-Siskiyou National Forest, and the smallest are Siberian bantam pines and Potosi Pinyon. Although pines are mostly monoecious, with male and female cones on the same tree, several species are sub-dioecious.
Male cones are small, usually 1-5 cm long, and only appear for a short period of time when they drop dust. Female cones develop for 1.5-3 years after fertilisation, depending on the species, with genuine preparation postponed for one year. Female cones can grow to be 3-60 cm long. Pinus regenerative structures for both males and females exist on different parts of a single plant. On a pine tree, female cones are typically larger. They are arranged at the tree limbs' highest point. Male cones on lower branches are smaller in size.

As a result, alternative A is the correct answer, i.e., On different branches of the same plant.

Note:
Male and female regenerative designs occur in different parts of a similar plant in Pinus. Female cones are typically larger on pine trees. They are arranged at the tree limbs' highest point. Male cones on the lower branches are smaller. In this regard, the Pinus is a monoecious plant. Because pine trees are deciduous and shed dust, cones, and leaves each fall, they are rehashed in the spring.