For AP bio lab 7, what is the expected cross between male wild and female ebony for the f1 and f2 generation? would the cross be sex-linked, monohybrid, or dihybrid? |
| Ebony is an autosomal trait so sex of the fly doesn't determine the outcome. Here is a good site to look at for fruit fly genetics. |
I need a name for a Chinchilla male something unique but not to unique? Im getting a Ebony Male Chinchilla tonight and need all the names i can get also im looking for a name thats different like, Soco,Lime,ChiChi etc... maybe something spanish or from Jamican but I have to know how to pronounce it! thank you!!! |
There are lots of websites that will give you name ideas. Here's one for example: www.lowchensaustralia.com/names.h…
ChiChi is actually a pretty common chinchilla name.
I hope you'll join us over at www.chins-n-hedgies.com so you can get some really good information about chinchillas, other than just a name. :) |
I am a cocasian male and I like ebony girls. Is any girl can help me in knowing how's the best way to attract What is the best way to attract and seduce an ebony woman? |
| Just be yourself. Nothing is more irritating than trying to be something your not. there are ebony girls that will go out with caucasian men. But, if you get rejected a few times, that's ok. Don't let rejection set the tone for you not going for what you like. Good luck to you. |
Where can I find a Chinchilla breeder? I've had one before but I got him from a local pet store in town and they aren't around anymore. I want a baby dark ebony male and I've been looking online and it's so hard to find.
I need a place that ships or is in Washington so I can drive and get him
Know of anyone respectable? |
www.alisonschinchillas.com/
www.chinchillas-northwest.com/
www.littleplanet.us/index.html
www.viking-chinchillas.com/
www.geocities.com/chinchilla_fanc…
www.chin-chillas.com/
applewoodchinchillas.tripod.com/
www.angelfire.com/wa2/chincolor/ < (Their site was kinda down, but I listed their contact info below.)
Pacific Northwest Chinchillas
912 1st Street
Kirkland, WA 98033
phone: 425.822.6382 anytime |
Biology. Fruit Flys, why di the ebony body color disappear in F1 generation and reappear in the F2 generation? Biology. Fruit Flys, why di the ebony body color disappear in F1 generation and reappear in the F2 generation?
Okay, so I am not a scientist or a biologist apparently. I can whiz away at english or maths, and computers but I am lost here please read this and advice. Thank you for those who actually help me.
Two flys are used for breeding. P generation Male and Female ( The male is Tan, The female is ebony)
When they breed the make F1 generation ( Both female and male are tanned)
When both tanned F1 generation is breeded, they have 37 tan f2 males, 39 tan females f2, 13 ebony males f2, 12 ebony females f2
Okay so here is my questions, I am so sorry to have to ask. I honestly do not get it, I have read over my text books, and been doing this for a week now, and the past 2hrs!!
7. why did the ebony body color disappear in F1 generation, then reappear in F2 generation?
8. Why do you think he F1 generation all came out tanned?
5. what is the genotypic ratio of F2 offspring? What is the phenotypic ratio of the F2 offspring?
( I think the answer is genotupic ratio 1:2:1. The phenotpic raio is 3:1 ) can someone confirm this is correct, or correct me PLEASE :D
Okay, so im also throwing this out there. If someone knows about this and can help me!! I have answered them just not sure if I am right.
2. construct a punnett square to show the original cross between the tan fruit fly and the eb oney fruit fly.
This is what I got?
P P
p Pp Pp
p Pp Pp
4. Contruct a punnett square to show the second cross.
These are what I put down, are they right or can you help
F2 f2
F2 FF fF
f2 fF ff
I thank anyone who takes the time of their day to help me out. From a math, computer geek, defo not a biologist one |
| the key is to remember which genes are dominant and recessive. dominant ones will always show when paired with something, but eventually recessive come through because it can lie dormant with a dominant trait. just think it through logically i guess. even though you might not see the recessive gene it might still be there, ie. some brown eyed people still have the gene for blue eyes and thus may have blue eyed guyren. hopefully that helped |
How do I set up a punnett square for sex linked? The gene is sex-linked (on the X chromosome) and the ebony allele is dominant. You have a normal female and ebony male as the genotype of the parental generation.
How would I set up a F1 Punnett square and how would I find the expected F1 phenotypes (% of females and males) that are normal and ebony?
please explain. Thanks. |
Okie dokie...
When dealing with sex linked punnett squares, you have to remember that females have two copies of X and of course, males are XY. Also, dont forget that if the trait is sex linked, the male Y wont have any trait on it that you are worrying about.
We know that the female is normal. Since she isnt ebony (and ebony is dominant) we know that both her X chromosomes have the recessive allele (so you would put X with a little e in the top right corner): Xe Xe. The male is ebony so we know that his genotype would be XE Y (X with a big E in the top right corner). SO now cross Xe Xe with XE Y.
You wind up with 2 XE Xe and 2 Xe Y as your resulting genotypes. You should be able to tell phenotypes and % using that. Check the link for some visuals. |
I'm looking for a Homo Ebony Chinchilla, but the shipping prices are kiling me? Anyone know of where I can get a Homo Ebony Chinchilla at a good price that is in the south-east u.s.a, that would not mind meeting me half-way and I can pay for gas. Or, if the breeder has cheap shipping prices. I'm looking for either male or female, so it don't matter. |
When I lived in NC (up until June 2007), I bought the most beautiful ebony from a breeder I trusted after literally driving to every breeder available. This breeder keeps very detailed records of geneology and doesn't even allow potentialbuyers around newborns for fear of illness or adopts out the little ones before they are weaned (unlike many breeders/ "farms". You may be able to meet her halfway, but you should try and pick up. She also is wonderful about making sure new owners have the proper cage set-up and for a very small price- gives them about three months of feed, hay, and custom made supplement.
Carolina Chinchilla Connection: www.rjsonline.net/chinchillas/car…
I ended up adopting a beautiful hetero ebony (who looks like a homo, but her genes state otherwise), and have been a happy second-time chinchilla owner since. Ann is located in Rick Hill, SC, about 15 minutes outside of Charlotte, NC.
Only contact her if you're up-to-date on the required knowledge to own one of these creatures. Real breeders of this caliber do not adopt out to ignorant or unknowledgeable pet owners. |
Is interracial dating only cool if your a black male/white female? You see mtv pushes black male/white female very heavily but very rarely shows the other way around.
Rap music pushes black male/white female but is against the other way around.
I know when you are at dance clubs with an ebony lady the black males give you and her a hard time, evil looks and racial slurs.
Black movie producers like spike lee push black male/white female
in all their movies but you never see white male/black female..
Really who are racist here? |
Blacks are every bit as racists as any other race, it's just not politically correct to say so!!
And yes, I do tend to notice exactly what you described! |
Strong Male Names For My Story? I need strong masculine names that aren't to popular for the main male character in my story. He is very mysterious and I can't think of a namr thanks in advance. The main girl's name is Ebony Monez so far if you have suggestions for a name change for her that would be helpful. |
| Dominic Stone |
Need help with genetics question please? 1. The genes for mohogany eyes and ebony body are approximately 25 map units apart on chromosome III in Drosophila. Assume that a mahogany-eyed female was mated to an ebony-bodied male and the resulting F1 phenotypically wild type females were mated to mahogany, ebony males. Of 1000 offspring, what would be the expected phenotypes and in what numbers would they be expected? |
For starters, you must know the inheritance of both mahogany and ebony. I happen to know that ebony (e) is recessive, so I am assuming that mahogany (which I am going to call "m") is also recessive. Assuming that to be the case, the cross is rather as follows:
(note:x and y are being used to represent dominant alleles for body color and eye color, respectively)
female x male
x, m e, y
The resulting cross is shown below:
F1 (m)
-------- e y
x xe -
(f) m - my
100% of the F1 are this genotype xe-my, and will not express ebony or mahogany. Thus, they are all phenotypically wild type.
Now, the F1 cross with mahogany, ebony males:
female x male
xe-my e, m
This is broken into 2 crosses for simplicity.
Body color:
(m)
----- e
(f) x xe
e ee --> 50% (1/2) will have ebony body
color
Eye color:
(m)
----- m
y ym
(f) m mm --> 50% (1/2)will have mahogany eye
color
Now, you take the probabilities of individually having each trait and multiply them:
1/2 x 1/2 = 1/4
Applying this to 1000 progeny, 1/4, or 250, should have the phenotype of mahogeny eyes with ebony bodies. You also have to re-align the punnett squares, as yahoo messed up the alignment. |