Sex has also been shown to influence the complexity and diversity of gut microbiome populations [30,31,32,33]. Using a panel of over 100 diverse inbred strains of mice, Org et al. identified distinct gut microbial communities in male vs. female mice whose composition was influenced by the p...
Well, here’s the twist. Unlike these systems, which receive autosomes from both parents, male honey bees andantsreceive chromosomes only from the female parent (the Queen). This means that they develop from unfertilized (haploid) eggs and don’t have a father, whereas fertilized (diploid)...
We fed male and female XX and XYLdlr−/−mice a Western diet for 4 months to examine effects of sex chromosome genotype on serum lipids and atherosclerosis. To separate the contribution of sex chromosomes and sex hormones, male and female mice of each sex chromosome genotype were either go...
In Klinefelter syndrome, the sex chromosome pairs which is either XX or XY don't separate in meiosis I in the male or female germ cell and this resulted in two gametes with a pair of X chromosomes and two gametes without X chromosomes.Klinefelter综合征中，配对的XX或XY性染色体对在父亲或母亲...
Nevertheless, several studies on Ellobius have reported that the two X chromosomes may have a differential organization and behavior during male meiosis. It has not yet been demonstrated if these differences also appear in female meiosis. To test this hypothesis, we have performed a comparative ...
Female longevity is observed in humans and much of the animal kingdom, but its causes remain elusive. Using a genetic manipulation that generates XX and XY mice, each with either ovaries or testes, we show that the female XX sex chromosome complement increases survival during aging in male ...
it is usually located on anX chromosomedue to recombination between the X and Y chromosomes. However, translocation to anautosomecan occur. TheSRY-positive 46,XX males generally have normal male external genitalia, small azoospermic testes,hypergonadotropic hypogonadism, and often present with infert...
Answer to: An individual with XX sex chromosomes is: a. a male b. a female c. red-green colorblind d. impossible to determine without knowing...
gonads can generate phenotypes ranging from male to hermaphrodite to female. Constitutive mutation of a downstream X-linked gene could have the same effect. Given twoX chromosomes, one normal (X) and one bearing the mutant gene (XM), randomlyonizationcould produce a variety of gonadal phenotypes...
males had mean levels of the antigen not significantly different from that in normal male controls. Female parents of sex-reversed dogs and some of their female siblings were typed H-Y antigen positive, but the mean level of the antigen in this group was less than that of normal male ...