How To Use Y chromosome In A Sentence
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Y chromosomes are genetically degenerate in most organisms studied.
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The spindle assembly checkpoint pathway is necessary for high-fidelity chromosome transmission in cells in which the spindle or kinetochores are compromised in some way.
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The investigators say they have indirect evidence that Genghis Khan carried the Y chromosome variant that caught their eye.
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Embryos that are trisomic contain, instead of matched pairs of chromosomes, one too many of a given chromosome, most commonly chromosome 13, 18, 21 (which is responsible for Down syndrome), X, or Y. Trisomies are the result of a glitch known as nondisjunction, which occurs principally during the creation of egg cells (although sperm cells may also exhibit such errors).
Delayed Childbearing
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This paper looks at loci on the autosome, as well as the Y chromosome.
ScienceBlogs Channel : Life Science
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In man, for instance, the genes that control gender are on the Y chromosome.
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The testing used a lab procedure called PCR that detects genetic material - in this case, the male Y chromosome.
FOXNews.com
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Pierre Ray and colleagues at University Hospital in Grenoble said while deletions of some portion of the Y chromosome have been found in infertile men, their discovery is a rare example in which a mutation in a single gene causes male infertility.
Gene Mutation Leads to Male Infertility | Impact Lab
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Well, it was more about the way chromosomes get divided or doubled in two processes called mitosis and meiosis.
IndyStar.com Top Stories
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In most meioses, every chromosome pair, no matter how small, sustains at least one crossover - a so-called obligate crossover or obligate chiasma.
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Apparently all the Y chromosomes in town have indentical genotypes AND as Alpha Male he got dibs.
GOP Senator On Bush: Homina, Homina, Homina...
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human males normally have one X chromosome and one Y chromosome
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When nondisjunction occurs, the resulting eggs may carry too few or too many chromosomes, a state called aneuploidy.
Delayed Childbearing
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In mammals, male sex determination is triggered by a primary signal, encoded by the testis determining factor SRY, localized on the Y chromosome.
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This virus does not integrate into the fly chromosomes and is only vertically transmitted through male and female gametes.
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Methods: Multiple PCR method and PAGE technology were used to detect factor ( AZF ) regions of Y chromosome.
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She's got a chip on her shoulder against anything that's got both an X and a Y chromosome.
PASSION AND ILLUSION
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Each daughter cell must receive an exact copy of each and every chromosome.
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The female-specific avian W chromosome shares several characteristics with the mammalian Y chromosome; it is small, gene-poor, and rich in repetitive heterochromatic DNA.
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amphidiploid: same as allotetraploid autopolyploid : polyploids created by chromosome duplication within a species basic chromosome number (monoploid number): the number of different chromosomes that make up a single complete (chromosome) set.
Lynn Margulis: "Definitely a Darwinist" - The Panda's Thumb
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This magnificent enterprise has charted our species' path out of Africa using successive generations of markers: blood type, allozyme, mitochondrial DNA, the Y chromosome, and nuclear single nucleotide polymorphisms SNPs.
"On Human Diversity"
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Apparently all the Y chromosomes have indentical genotypes AND as Alpha Male he got dibs.
Hillary To Raise Half A Million Dollars For Obama At Private Manhattan Dinner
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The presence of a Y chromosome results in the somatic cells of the embryo's gonads developing into testes rather than into ovaries.
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So, ladies, though my Y chromosome prevented me from being similarly moved, Tristan & Isolde is a good film if you want a good cry. posted by Dr. Richard Scott Nokes at 8: 16 AM
Tristan & Isolde Review (for real, this time)
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Their ancestral array could have existed on the autosomes of the progenitor of the A. gambiae complex, from which some repeats were translocated onto the Y chromosome.
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It may be of interest to examine the sperm of men with different sized Y chromosomes to see whether there is a relationship between the level of sex chromosome disomy and Y chromosome size.
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Interspecific or intergeneric hybridization, followed by chromosome doubling, can lead to the formation of new allopolyploid species.
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Genes are submicroscopic segments of DNA and cannot be detected by chromosome analysis.
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When colonies are formed, the resulting cells tend to have euploid genomes derived from the aneuploid state by chromosome loss.
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Our eyesight and hearing are dependent on healthy chromosomes.
Times, Sunday Times
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He looks as though he is made of anger issues and extra Y chromosomes.
Times, Sunday Times
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Chromosomal sex determination can also be more complex, with multiple X and Y chromosomes, or maternal, as in the carrion fly Chrysomya rufifacies.
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He looks as though he is made of anger issues and extra Y chromosomes.
Times, Sunday Times
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In contrast, 82.5% of injected cells align chromosomes in metaphase, progress to anaphase, and display chromosome velocities not significantly different from control cells.
Sub-cellular ID Spin - The Panda's Thumb
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Conclusion Micro-deletion in AZF gene of Y chromosome is one of the major risks for oligospermatism and azoospermatism.
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So, adding some Y chromosome is supposed to be a good thing?
Some Super Casting News | the TV addict
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More than half of all embryos are aneuploid, which means that they have too many chromosomes or too few.
Times, Sunday Times
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We show that the male lethality associated with bon alleles is not due to defects in dosage compensation or sex determination pathways, but rather to the presence of the Y chromosome.
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If a gene on the Y chromosome mutates, that piece of the male genetic code may disappear.
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We also investigated a possible DMSO effect on the frequency of polyploid and endo-reduplicated cells by chromosome counting.
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The proportions of X and Y chromosome bearing sperms in human semen are equal, but more boys than girls are born.
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Some intersexed people have XX chromosomes everywhere except the ovotestes, which have XY chromosomes, or vice versa.
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OF HUMAN GENETICS: There is a clear demonstration that about half of the males who have been sampled from the Lemba have a Y chromosome which is not of African origin but rather of what we call Semitic or Middle Eastern origin.
CNN Transcript Sep 11, 2004
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Position-effect variegation results from the juxtaposition of euchromatin and heterochromatin by chromosome rearrangement or transposon insertion.
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When colonies are formed, the resulting cells tend to have euploid genomes derived from the aneuploid state by chromosome loss.
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Her interest was in the ‘B’ or accessory chromosomes of corn, a project in which Randolph had an interest much earlier.
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For the most part, each cell has two copies of every chromosome, one inherited from the mother and one from the father.
X-linked Lymphoproliferative Syndrome
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It starts out in the first chapter of incorrectly asserting that woman came from man (the Y chromosome is actually evolved from the X – which is proved in the fact that all life starts out female).
Think Progress » Zakaria: Rumsfeld ‘Seems In A Parallel Universe and Slightly Deranged’
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Consequently, a Cain gene on an X chromosome can safety kill the Y chromosome and not risk suicide.
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Consequently, a Cain gene on an X chromosome can safety kill the Y chromosome and not risk suicide.
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More than half of all embryos are aneuploid, which means that they have too many chromosomes or too few.
Times, Sunday Times
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Circumventing infertility with intracytoplasmic sperm injection: A case of transmission of a ring Y chromosome and true hermaphroditism.
Publications of the Urology Division
