Un-Answered Questions { Botany }

what is the ecological importance of mycophytes?

2146


what is the non-congruent principle?

1070


Write a flora formula for a flower which has a variable number of sepals, 8 petals united at the base, 8 stamens united by their anthers, and an inferior ovary of 4 united carpels.

1006


Describe the structure of a catkin with regard to sex and completeness of the flowers.

775


What things do you count in order to determine the number of carpels in a compound ovary?

767





True or false: tubers and fruits of wild members of the Solanaceae may be safely eaten. Explain.

909


Describe the unusual stamens in many members of the Ericaceae. What two corolla shapes are typical of the family?

930


Which sex(es) of flowers in the Cucurbitaceae have nectary disks? Why?

1726


You have been provided with a set of plates of fungi isolated from a diseased leaf, one Chytridiomycota, one Zygomycota, one Ascomycota and one Basidiomycota. The signs of infection indicate that the disease has been caused by a member of Ascomycota which does not form a sexual stage easily. What features would you look for in your isolates to indicate if the target fungus was present?

774


In cleared and stained root material you have seen structures that appear to be empty sacs in the epidermal cells with ostioles that exit to the soil. Which division are these fungi likely to be from?

860





Toxin X is released only in mature spores of a single fungus and only when both alleles at a single locus are present. The toxin is never observed when the alleles are together in hyphae or modified hyphae. What division is the fungus found in?

846


What causes sap to leak out of pine and maple trees?

991


If you break off a piece of an aloe plant and put it in water, will roots grow and What is that type of propagation called?

959


Does oxygen and hydrogen map up water?

846


what is the application of induced auto ploypoidy in crop improvement ?

833