Question

Read the following statements:

$a.$ The male or female cones or strobili may be borne on the same tree in Pinus.

$b.$ In Cycas, male cones and megasporophylls are borne on different trees.

$c.$ Stem of Cycas is branched and Pinus and Cedrus is unbranched.

$d.$ In gymnosperms, generally tap roots are found.

Select the correct statements:

Answer 1

Correct statements

Statement $\left(a\right)$ : The male or female cones or strobili may be borne on the same tree in Pinus.
Pinus is monecious i.e., has both male and female cones on the same tree. The female cones are found on the upper branches whereas male cones are present on the lower branches in clusters.
Hence, statement $\left(a\right)$ is correct.

Correct statements

Statement $\left(b\right)$ : In Cycas, male cones and megasporophylls are borne on different trees.
The Cycas plant is dioecious i.e., both male and female cones are borne on different trees. They are heterosporous with motile male gametes born in male cones and female gametes formed in female cones.
Hence, statement $\left(b\right)$ is correct.

Correct statements

Statement $\left(d\right)$ : In gymnosperms, generally tap roots are found.
Gymnosperms have mostly tap root systems. In the tap root system, a thick primary root arises directly from the radicle and grows inside the soil.

Final answer
$b)a,b,d$