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Why is not Mendel's second law always valid for two or more phenotypical traits of an individual?
Mendel's second law, or the law of the independent assortment, is valid for genes located in dissimilar chromosomes. These genes during meiosis segregate independently.
Mendel's second law though is not valid for phenotypical features conditioned by genes located in the similar chromosome (genes under linkage), since these genes, called as linked genes, do not separate in meiosis (except for the phenomenon of crossing over).
Image Diversity: genetic linkage
Enantiomers: Select one: a. Have the same molecular weight b. Have the same connectivity c. Are mirror images d. Are non-superimposable e. All of the above
While studying evolution, a student comes across a cladogram that includes clades like amphibia, reptilia, aves, and mammalia. What must be the basal clade?
Heart of cockroach: In cockroach, heart is situated in pericardial sinus. It has13 chambers These are one behind the other. Each chamber opens into preceeding one. The
Influence of Yolk on Cleavage Though biological significance of yolk is to provide nourishment to the developing embryo, it is not part of the active cytoplasm. Yolk is dead
Enzyme Activity Enzymes are biomolecules which catalyze (i.e. increase the rates of) chemical reactions. Almost all enzymes are proteins. In enzymatic reactions, the molecules
What is the meaning of Body composition? It refers primarily to the distribution of muscle, fat, bone and other tissues in the body, and its measurement is often considered as
Q. To increase the strength of the muscle work is the muscle contraction intensely increased? An increase in the strength of the muscle work is not achieved by increase in the
what are the ecological importance of molluscus
Shivering - Heat Production The mechanism of thermogenesis with which we are more familiar is shivering and all adult birds and mammals seem to use these mechanism. Shivering
General characteristics of phylum
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