Factors affecting absorption of water by root
sanaFollowing factors affect the absorption of water by root: I. Soil Temperature: The rate of water absorption increases with a rise in soil tempera' tire. lint this rise to a…
SEX LINKED INHERITANC SUBJECTIVE QUESTION
rubab1.What is sex linked inheritance? Discuss its different types. Discuss sex linkage in drosophila. Discuss genetics of colour blindness in man. Discuss different pattern of sex determination. Describe ZZ-ZW system…
SEX LINKED INHERITANC DEFINITIONS AND KEY POINTS FOR OBJECTIVES
TERMS DEFINITIONS Sex linkage The genes present on the sex chromosomes are called sex linked gene and this phenomenon is know. as sex linkage. Reciprocal cross A cross in %vhich…
Group 11: Gymnospermae
sidraThey are shrub or trees. The trees are rdsinous. Stern has central pith. Vascular bundles are present in rings. Secondar) growth occurs due to cambium. Leaves are needle like. They…
Sex Limited Trait
The traits limited to only one sex due to anatomical differences are called a sex limited treat. Such trait affects a structure or function of the body of males or…
ZIN MECHANISM
This type of sex — determination pattern is common in birds. butterflies and moths. It was discovered by .1. Seiler in 19 14 in 1110111. It is the reverse of…
XY – MECHANISM
This pattern of sex determim tion is round in Drosophila, man and many other organisms. (a) Male: Male is XY. Mite is heterogametic. It produces two types of sex-determining sperms.…
MECHANISM OF ABSORPTION OF WATER
WATER Absorption: of water*, root hairs: .[he absorption of \safer from the soil takes place tlitimigh the root hairs. Ihe root hairs are in contact with the wateriilms on the…
Classification system of Carolus Linnaeus
The classification system of Linnaeus was based on floral characteristics. He chiefly used characters of stamen's. Therefore, his system is called sexual system. This system is very convenient for the…
XO MECHANISM
The sex determining mechanism in which sex is determined by In X chromosome only is called X() mechanism. This pattern of sex determination is found in grasshopper and protenor bug.…