--%>
Assignment Help - homework help

Formation of gymnosperm seeds

How the gymnosperm seeds are formed? What are the ploidies of structures which composed of the seeds?

E

Expert

Verified

Their seeds are formed through the differentiation of megasporangia inside the female strobiles (cones). After an oosphere gets fecundated, female gametophyte creates the haploid (n) primary endosperm, a nutritive tissue which covers the embryo and the covering of megasporangium turns into the diploid (2n) seed shell.

   Related Questions in Biology

  • Q : Project Management Methodologies

    Project Management Methodologies: Structured set of procedures, tools, techniques, rules and regulations in project management Generally used project management methodologies, including PMBOK and PRINCE2.

  • Q : Describe about inflammation Describe

    Describe about inflammation briefly?

    		•
  • Q : Describe the route of nutrients after

    From intestinal lumen via to the tissues - describe the route of nutrients after digestion?

    		•
  • Q : Problem of transporting substances by

    How do plants resolve the problem of the transporting substances by their tissues?

    		•
  • Q : Name by which erythrocytes are

    Give the other names by which erythrocytes are identified? What is the function of such cells?

    		•
  • Q : Explain Margin Improvement Margin

    Margin Improvement: Margins in the industry kept beneath pressure, even previous to the economic downturn for the industry as entire, returns on capital have continued beneath the cost of capital. Previous to the falls in the second half of 2008, the

    		•
  • Q : Respiration in adult amphibians How

    How respiration in adult amphibians is different from that of respiration in fishes?

    		•
  • Q : Functions of adrenalin Write down the

    Write down the three functions of adrenalin? Briefly state it.

    		•
  • Q : What is Line Extension Line Extension :

    Line Extension: A firm markets one or more latest products in an established and famous brand identity as a multi-product branding policy. The aim is to take benefit of widespread name recognition of the original brand and satisfy various customer req

    		•
  • Q : What is Performance Improvement or PI

    Performance Improvement (PI): It is a method for analyzing performance troubles and setting up systems to make sure good performance. PI is applied most efficiently to groups of workers within similar organization or performing alike

    		•