NEET BIOLOGY

BIOLOGICAL CLASSIFICATION

KINGDOM PLANTAE

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
The largest cones produced on a pine tree, the ones we are typically most familiar with, are the female cones that contain:
A
megasporangia
B
microporangia
C
microspore
D
antheridia
Explanation: 

Detailed explanation-1: -The Heavyweight: Coulter Pine (Pinus coulteri) Coulter pines, native to the mountains of southern California (U.S.) and Baja California (Mexico), produce the most-massive cones of any pine species. Known colloquially as “widow-makers, ” those giant pinecones can weigh up to 5 kg (11 pounds)!

Detailed explanation-2: -The female cone (megastrobilus, seed cone, or ovulate cone) contains ovules which, when fertilized by pollen, become seeds.

Detailed explanation-3: -In gymnosperms, the female gametophyte comprises one or several egg cells surrounded by a dense multicellular tissue that will nurse the embryo following fertilization.

Detailed explanation-4: -These gametes are housed in a structure called a strobilus, or cone. Female pinecones are generally found in the upper branches of the tree crown, above the male cone.

There is 1 question to complete.