Terminal cytochrome of respiratory chain which donates electrons to oxygen is :
cytochrome b
cytochrome c
cytochrome a
cytochrome a3
Dendrochronology is the study of:
height of a tree
diameter of a tree
age of the tree by counting the number of annual rings in the main stem
none of the above
An open collateral bundle is one in which :
xylem and phloem are seprated by cambium;
xylem and phloem lie side by side
cambium occurs on the out side of bundle
cambium does not occur in the bundle
A.
xylem and phloem are seprated by cambium;
Collateral bundle, that is, phloem on outside and xylem on inner side. It is open when a strip of cambium is present between xylem and phloem. e.g., dicot and Gymnosperms stem.
Agar-agar commonly used in bacterial cultures and medication is obtained from :
Sargassum
Gelidium
Ulothrix
Ulva
Dikaryon formation is characteristic of :
ascomycetes and basidiomycetes
phycotnycetes and basidiomycetes
ascomycetes and phycomycetes
phycomycetes and zygomycetes
Prothallus of fem has :
antheridia and archegonia on lower surface
antheridia and archegonia on upper surface
antheridia on upper surface and archegonia on lower
antheridia on lower surface and archegonia on upper surface