Why do you choose specific breed as female over male

[riohog 5,714]

What complicates matters is that females will produces X and Y chromosome eggs and so can produce either sex offspring and males have only X chromosomes in sperm. So females should have all the available male and female gene traits but it is the egg which decides if the offspring is male or female. I am no genetics expert but I would fail to see how it could matter. So some double recessive traits can be past from females to males, but still need the recessive trait from the male to be expresssed. Or to summarise females have male and female genes, males just have the male ones, but could have got them from either parent.

 

 

 

a n entire dog mates with an entire bitch ,some of the male pups have (cryptorchidsm) retained testicle .... did this come from the sire or the dam ?... it can only show phisicly in the males ..but how do you know the female isnt the carrier of that defective genein the first instance !!

 

 

 

 

 

 

 

 

If anyone understands this could they explain it back to me!!!

[anagallis_arvensis 2]

What complicates matters is that females will produces X and Y chromosome eggs and so can produce either sex offspring and males have only X chromosomes in sperm. So females should have all the available male and female gene traits but it is the egg which decides if the offspring is male or female. I am no genetics expert but I would fail to see how it could matter. So some double recessive traits can be past from females to males, but still need the recessive trait from the male to be expresssed. Or to summarise females have male and female genes, males just have the male ones, but could have got them from either parent.

 

 

 

a n entire dog mates with an entire bitch ,some of the male pups have (cryptorchidsm) retained testicle .... did this come from the sire or the dam ?... it can only show phisicly in the males ..but how do you know the female isnt the carrier of that defective genein the first instance !!

 

 

you dont, as the female could carry the gene, which was my point I think. good example

[Bigshrimp 5]

What complicates matters is that females will produces X and Y chromosome eggs and so can produce either sex offspring and males have only X chromosomes in sperm. So females should have all the available male and female gene traits but it is the egg which decides if the offspring is male or female. I am no genetics expert but I would fail to see how it could matter. So some double recessive traits can be past from females to males, but still need the recessive trait from the male to be expresssed. Or to summarise females have male and female genes, males just have the male ones, but could have got them from either parent.

 

Other way around mate: male (i.e. sperm) decides sex. Females have double X (XX) and male has X and Y (XY), so in meiosis when the cells are split the femal egg will always have an X and the sperm can either have an X or a Y.

 

 

 

Great discussion all!

 

 

Do you find that looks of the offspring change depending on which breed you use as male vs. female?? (Trigger touched on this but hoping for some more detail...or even pics!)

[huntingalltheway 2]

What complicates matters is that females will produces X and Y chromosome eggs and so can produce either sex offspring and males have only X chromosomes in sperm. So females should have all the available male and female gene traits but it is the egg which decides if the offspring is male or female. I am no genetics expert but I would fail to see how it could matter. So some double recessive traits can be past from females to males, but still need the recessive trait from the male to be expresssed. Or to summarise females have male and female genes, males just have the male ones, but could have got them from either parent.

 

Other way around mate: male (i.e. sperm) decides sex. Females have double X (XX) and male has X and Y (XY), so in meiosis when the cells are split the femal egg will always have an X and the sperm can either have an X or a Y.

 

 

 

Great discussion all!

 

 

Do you find that looks of the offspring change depending on which breed you use as male vs. female?? (Trigger touched on this but hoping for some more detail...or even pics!)

alsatian as the mum 7 weeks old not the best pic i have one with the sire

[anagallis_arvensis 2]

Other way around mate: male (i.e. sperm) decides sex. Females have double X (XX) and male has X and Y (XY), so in meiosis when the cells are split the femal egg will always have an X and the sperm can either have an X or a Y.

 

OOPs your right

[Mickey Finn 3,014]

I have to agree with Bigshrimp. The only consideration should be structural. ie the female may need to be larger to carry the pups.

 

For chromosomes and all that. Dogs have 39 pairs. These carry all the genes that make up their genotype. Each contributes half as was stated. Female based genes are carried by an X chromosome. Males have one from their dam and a Y from their sire. Females of course have two Xs One from sire and one from dam.

 

Some traits are dominate and some are recessive. (The guys who understand that Merle thing are way ahead of me on this ) Some are carried by female genes only.

But the thing is. No gene as from what I understand carries just one trait. Generally, we look at the dogs Phenotype and performance to decide what to breed. So, it's only natural that sometimes genetics will throw us a kink in our plans. This might explain why some litters bred a certain way seem to come out different. Aside from that, it's what you do with them that decides their worth. inho

[Trigger 26]

What complicates matters is that females will produces X and Y chromosome eggs and so can produce either sex offspring and males have only X chromosomes in sperm. So females should have all the available male and female gene traits but it is the egg which decides if the offspring is male or female. I am no genetics expert but I would fail to see how it could matter. So some double recessive traits can be past from females to males, but still need the recessive trait from the male to be expresssed. Or to summarise females have male and female genes, males just have the male ones, but could have got them from either parent.

 

Other way around mate: male (i.e. sperm) decides sex. Females have double X (XX) and male has X and Y (XY), so in meiosis when the cells are split the femal egg will always have an X and the sperm can either have an X or a Y.

 

 

 

Great discussion all!

 

 

Do you find that looks of the offspring change depending on which breed you use as male vs. female?? (Trigger touched on this but hoping for some more detail...or even pics!)

i have mainly noticed the difference in the shape of the heads the dogs out the gsd bitch seem to have a squarer head like the gsd. where as those out of the greyhound bitch seem to be a bit more slim line and racer like the greyhounds. there is always the odd exceptions to every rule.

[stormyboy 1,352]

It is probably more a case of one of the parents being "homozygous" (or "prepotent"). this could be the dog or bitch,that stamps its type in its offspring. This can also show in characteristics as well as appearance.

Genuine question-Flint08 has mentioned this before in his malamute x. Has the reverse been tried to compare? (grey bitch x mal dog?)

What does the bitch "bring to the party" that the dog does not?

 

Interesting topic.

[stormyboy 1,352]

Very true,but in what way are the offspring better if the base line (malamute,collie etc) is the bitch?

[ciaranmcman 23]

in ireland we allways use the greyhound as dam 4 a first x an the bull wheaton collie etc as the sire other wise ther bred the wrong way to small etc

[the lamping ferreter 160]

its the speed over ur base breed so grey dog to bull or collie bitch

[the lamping ferreter 160]

well i have herd speed over brains but i see ur point

[anagallis_arvensis 2]

its still the same genes going together,tell me why they are different when the mother is the horse and when the mother is the donkey

 

Not the same genes, they are different species and produce sterile offspring, this is because they have different numbers of chromosomes (strands of dna that carry thousands of genes)

[Trigger 26]

its still the same genes going together,tell me why they are different when the mother is the horse and when the mother is the donkey

 

Not the same genes, they are different species and produce sterile offspring, this is because they have different numbers of chromosomes (strands of dna that carry thousands of genes)

i think you have slightly miss understood what he is saying, it is still the same genes being mixed up if you cross a donkey with the horse or a horse with a donkey

[anagallis_arvensis 2]

i think you have slightly miss understood what he is saying, it is still the same genes being mixed up if you cross a donkey with the horse or a horse with a donkey

 

Its not though because their are different numbers of chromosomes in the egg or the sperm.