In the construction of chromosome maps, the evidence is derived mainly from
Cross over values
Hereditary effects of chromosome fragmentation
Electron microscopy
Behaviour of chromosomes during meiosis
In order to calculate map distance of genes on a chromosome, one must know the
Number of autosomes in a normal female is
Catalytic property of $RNA$ was discovered by
Out of the two strands of $DNA$ one is carrying genetic information for transcription and it is called
In man, sperms contain autosomes and