Question

My chat doesn't seem to be working so I will ask my question here. Does anyone know where I can find help in genetics??

Answer 1

hi! this is d section where u can get genetics help...infact i can help u wid genetics..

Answer 2

wats ur ques?

Answer 3

I've got some problems dealing with mitosis, meiosis I, and meiosis II along with the theory of chromosome inheritance

Answer 4

sure..i can help u out....wer r u stuck exactly?

Answer 5

sorry i keep losing connection on this site = ( i love it but too many ppl on here are over loading it lol ok hang on let me type the question out thank you so much for helping me

Answer 6

In a certain strain of turkeys, unfertilized eggs sometimes develop parthenogenetically to produce diploid offspring. (Females have ZW and males have ZZ sex chromosomes. Assume that WW cells are inviable.) What distribution of sexes would you expect to see among the parthenogenetic offspring according to each of the following models for how parthenogenesis occurs?
a. The eggs deveolp without ever going through meiosis.
b. The eggs go all the way through meiosis and then duplicate their chromosomes to become diploid.
c. The eggs go through meiosis I, and the chromatids separate to create diploidy.
d. The egg goes all the way through meiosis and then fuses at random with one of its three polar bodies (this assumes the first polar body goes through meiosis II.)

Answer 7

http://www.oardc.ohio-state.edu/4hpoultry/t02_pageview/The_Tremendous_Turkey_10.htm
check dis out....dis is a lil diff from d normal cell division..so i am also brushing up...

Answer 8

ok checkin it out = )

Answer 9

so i think i understand a. It would be all females and that makes sense but then I start to lose it all when I get to b. lol

Answer 10

normal male turkeys can be hatched from unfertilized eggs by parthenogenesis.
see dis is what i read....so i guess its b

Answer 11

i maybe wrong though..i m still searching a good reference site..

Answer 12

oh each of those are a question lol not multiple choice, i wish!

Answer 13

ohh woops....ok wait.so u understood d 1st 1 correct?

Answer 14

well i didn't realize that this question had the answer in the back but i still don't get how the book got the answer lol it says a. would be all females. Which makes sense cuz if the eggs never got through meiosis then they never would have been fertilized and remained female ovum. But then they say b. and c. would be males. But how? and let me check what d. says

Answer 15

d. says 1/5 ZZ males and 4/5 ZW females

Answer 16

so in d 2nd eggs undergo meiosis..so now dey hv haploid set of chromosome....so either they have a Z or a W. then when dey duplicate it would form either ZZ or WW. ww do not survive..so u only get ZZ

Answer 17

u getting me?

Answer 18

ok so with this question, i mean what I'm about to say is probably stupid lol but I should only be looking at the ovum through mitosis, meiosis I, and meiosis II? I guess I don't understand how the ovum can go through meiosis bc my book is saying that meiosis I occurs only at ovulation and meiosis II occurs only after fertilization. So I shouldn't be looking at the spermatocyte whatsoever.

Answer 19

ok lets do 1 thing...keep ur book aside bcuz its confusing u...

Answer 20

lol

Answer 21

but i'm a visual learner lol

Answer 22

ok so now...in a) egg does not undergo meiosis..so its diploid...and as its a egg its chromosmes hv female genotype as in ZW. so the offsprings from this type wud b all females..correct?

Answer 23

but yes book aside lol i think my problem is I still don't have a great grasp on mitosis and meiosis. I think I do but maybe I don't lol

Answer 24

ok den ill give u a link wich has a vdeo of mitosis and meiosis..dat will help u as u r a visual person..:)

Answer 25

ooh yes that just might! = ) let me check that out first and then can we pick up from where we are leaving off?

Answer 26

ohh yes definitely..:)

Answer 27

thank you so much = )

Answer 28

http://vcell.ndsu.nodak.edu/animations/mitosis/index.htm
http://vcell.ndsu.nodak.edu/animations/meiosis/index.htm
here are d links...

Answer 29

so i guess the question I have now is do gametes ever go through mitosis? or is it only meiosis that they go through

Answer 30

hi do you know genetics? = )

Answer 31

hey...yes i know genetics...i have studied it last sem...wenevr u come online just tag me...

Answer 32

and ya...gametes r formed after they undergo meiosis...

Answer 33

So i think i get that chapter now. I've moved on to ch. 19 which is all about the hardy-weinberg stuff which I thought I knew somewhat about but these formulas are making my head explode. I'm sure it's really simple but I think my book is really complicating it for me. = (

Answer 34

hi! are u there? i can help u now...

Answer 35

hey i got some more q's = )

Answer 36

heya..sure...post the question in a new link....so that ill be able to see it easily....ping me when u come online