YY is non viable; the X chromosome has many genes which are essential. You can be XY, female, and fertile, but it’s pretty rare.
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There’s a bunch of them, but one more common example is Androgen Insensitivity Syndrome.
It’s also possible to have a non-functional SRY (XY but female), or to be XX with an SRY translocation (XX but male).
Biology is complicated: pretty much anyone who says it only happens one way or is really simple is wrong.
This is a bit misleading. You only need to treat the first generation of 2n watermelon with colchicine (which inhibits the movement of chromosomes during metaphase) to produce a 4n watermelon. Once you have a 4n watermelon, subsequent generations do not require colchicine treatment.
dondelelcaro@lemmy.worldto Unpopular Opinion@lemmy.world•All baking recipe ingredients should be in weight, not volume.English2·7 months agoAin’t nobody in the US got a fancy kitchen scale.
Lots of us have them. (Well, basic scales which weigh a tenth of a gram.) They’re useful when weighing compressible dry ingredients like flour and brown sugar, and viscous wet ingredients like molasses and corn syrup. They’re also helpful when you’re multiplying a recipe by a factor that doesn’t result in useful units; it’s annoying to figure out how to measure out fractional cups that involve teaspoons.
They also help with portion control if you’re watching calories.
dondelelcaro@lemmy.worldto Programmer Humor@programming.dev•How much firmware is initializing???13·9 months agoBonus points if your static site sends a 503 with a retry after header.
dondelelcaro@lemmy.worldto Programmer Humor@programming.dev•It's time to mentally prepare yourselves for this3·1 year agoUnless you’re in Tibet, Xinjiang, or another place observing UTC+8 with a significant offset from local solar time.
rRNA: typical. I do the work and everyone else takes credit.
dondelelcaro@lemmy.worldtoMicroblog Memes@lemmy.world•The numbers will determine your fateEnglish15·1 year agoYou can have debt utilization while still paying off the full statement balance each month and not being charged interest. I always have a balance, but I rarely carry the balance beyond the statement due date and interest free grace period. (I just have new charges that make the balance non zero.)
There’s even an instructables on how to do it.
dondelelcaro@lemmy.worldto politics @lemmy.world•Donald Trump dismisses lawsuit against former fixer Michael Cohen9·2 years agoI wonder if there will be an anti SLAPP action soon from Cohen’s team. (Not sure what the rules are in that jurisdiction.)
dondelelcaro@lemmy.worldto Showerthoughts@lemmy.world•Why shouldn't electric plugs screw in?2·2 years agoThey also make NEMA plugs with threaded rings around the boot for applications in marine and other harsh environments.
dondelelcaro@lemmy.worldto politics @lemmy.world•Supreme Court Ethics Bill Passes Committee over 100% Republican Opposition25·2 years agoThe most serious thing I heard of was Sotomayor’s staff intimating to universities bringing the Justice in to speak hadn’t purchased enough copies of her book.
Can’t wait for the calls of “But her books!”
dondelelcaro@lemmy.worldto Ask Lemmy@lemmy.world•What is something really stupid you purchased that turned out far better than expected?2·2 years agoI’ve had great luck with Upton teas for the past decade or more in the US. Great selection, teas at multiple price points from broken leaf to first flush single estate.
A related more general mnemonic works for the running lights too. Red has fewer letters than green, so it goes with left which has fewer letters than right and port which has fewer letters than starboard.