Any unique DNA sequence which can be used in hybridization , PCR or restriction mapping experiments to identify that sequence. See expressed sequence tag and sequence tagged site . An enzyme that degrades DNA to nucleotides . Also the trait controlled by that allele. A mechanism by which species with sex chromosomes ensure that the homogametic sex does not have too much or the heterogametic sex too little activity of loci on the homogametic sex chromosome.
Autoradiography reveals dots indicating probe hybridization.
Two crossovers occurring in a chromosomal region under study. The normal structural configuration of DNA consisting of two helices winding about the same axis. The structure of DNA first proposed by Watson and Crick with two interlocking helices joined by hydrogen bonds between paired bases. The condition in polyploids in which a heterozygous individual produces homozygous gametes . Encodes male and female specific proteins produced by differential splicing of the primary transcript in each sex.