NOUN
-
the sex chromosome that is present in both sexes: singly in males and doubly in females
human females normally have two X chromosomes
How To Use X chromosome In A Sentence
- In heterozygous females, pre-B cells whose active X chromosome expresses the mutant gene would not terminally differentiate and proliferate.
- Linkage groups are designated by roman numerals and X for the sex chromosome.
- One of several closely related genes, eft - 4, resides on the X chromosome.
- The fruit fly Drosophila melanogaster has two sex chromosomes and three autosomes.
- The new analysis confirmed the existence of 1,098 protein-coding genes on the X chromosome.
- But what the newly sequenced genome reveals is that the platypus's male-determining gene, the monotreme equivalent of primates' SRY gene, is not located on any of those five pairs of sex chromosomes. Archive 2008-05-01
- In organisms in which gender is based on one sex being homomorphic and the other heteromorphic for the sex chromosomes, a process has evolved to equalize the output of products encoded by the genes located there.
- We discuss possible explanations for reduced female recombination in marsupials as a consequence of the metatherian characteristic of determinate paternal X chromosome inactivation.
- Chromosome heteromorphism therefore reflects de novo evolution of sex chromosomes during the evolution of dioecy in this plant lineage, a relatively recent event within this genus.
- NO dimorphic sex chromosomes were observed in either sexof the three species examined.