Boots and Genes
What makes breeding Nigerian Dwarf Goats so fun?
"Ya never know what you're gonna get!"
A mix an match bag of tricks, or genes:
* blue eyes?
* coat color?
* coat pattern?
* polling?
There are different camps of thoughts on such traits
and how they get passed down.
Below are some of those:
"Ya never know what you're gonna get!"
A mix an match bag of tricks, or genes:
* blue eyes?
* coat color?
* coat pattern?
* polling?
There are different camps of thoughts on such traits
and how they get passed down.
Below are some of those:
Genetics: about recessive genes
"If a genetic trait is recessive,
a person only needs to inherit two copies of the gene
for the trait to be expressed.
Thus, both parents have to be carriers of a recessive trait
in order for a child to express that trait.
If both parents are carriers,
there is a 25% chance
with each child to show the recessive trait."
Reference: www.academickids.com/encyclopedia/index.php/Recessive_gene
Translated into goat production:
that means
if a goat baby who has brown eyes
but has a parent who is blue eyed
then the goat baby has a dominant gene of brown eyes (Capital B)
and a recessive gene for blue eyes (small b)
and when the baby goat later becomes a parent
then it passes on the recessive gene of blue eyes to the baby too
and if the other parent has brown eyes too,
but a recessive gene for blue eyes
then there is a 25% chance that the offspring will have blue eyes.
We had this happen this year when our brown eyed Jazelle
(her dam, Mini, has blue eyes)
bred with our brown eyed Oakley
(his sire, Toominigoats Texas Blizzard, has blue eyes)
and had a blue eyed kid.
Geneticists discuss:
Below is what I found interesting.
(Link is below)
“Do we get 1/4 of our genes from each grandparent?"
“I have answered a similar question before: “How many genes do we share with our mother?”.
“It is not that you “get half your genes” from each parent,
and thus a quarter from each grandparent,
it is that you inherit the versions of the genes
(we all have the ‘same’ genes).
“The method that determines which traits are inherited
from each parent by the offspring is known as homologous recombination,
and this process is (essentially) random,
and thus you end with ~50% of your traits
(the alleles of the genes)
from each parent,
and ~25% from each grandparent,
so you are right in this respect.
“This is, however, a generalization;
due to the chance nature of the recombination
it is entirely plausible that you may inherit more traits
from one grandparent
in comparison to another,
but this is unique to each individual
(with the exception of course of genetically identical twins).
1
“This comes down to the ever confusing use of gene to mean allele and loci.
Just as in the “How many genes..” Q you answered before,
the term gene is often used
for both leading to the confused idea
that we share 99% of our genes with chimpanzees
yet we only share 25% with our grandparents..
Alleles are all the different variants (or versions as you called them)
present at each loci (non-recombining region of DNA).
We share 25% of our ALLELES with our grandparents
(assuming no mutation and recombination)
and 99% of LOCI with chimpanzees.
“And we should wipe the word gene from the English language
and just use Allele and Loci!”
https://biology.stackexchange.com/questions/2684/do-we-get-1-4-of-our-genes-from-each-grandparent
"If a genetic trait is recessive,
a person only needs to inherit two copies of the gene
for the trait to be expressed.
Thus, both parents have to be carriers of a recessive trait
in order for a child to express that trait.
If both parents are carriers,
there is a 25% chance
with each child to show the recessive trait."
Reference: www.academickids.com/encyclopedia/index.php/Recessive_gene
Translated into goat production:
that means
if a goat baby who has brown eyes
but has a parent who is blue eyed
then the goat baby has a dominant gene of brown eyes (Capital B)
and a recessive gene for blue eyes (small b)
and when the baby goat later becomes a parent
then it passes on the recessive gene of blue eyes to the baby too
and if the other parent has brown eyes too,
but a recessive gene for blue eyes
then there is a 25% chance that the offspring will have blue eyes.
We had this happen this year when our brown eyed Jazelle
(her dam, Mini, has blue eyes)
bred with our brown eyed Oakley
(his sire, Toominigoats Texas Blizzard, has blue eyes)
and had a blue eyed kid.
Geneticists discuss:
Below is what I found interesting.
(Link is below)
“Do we get 1/4 of our genes from each grandparent?"
“I have answered a similar question before: “How many genes do we share with our mother?”.
“It is not that you “get half your genes” from each parent,
and thus a quarter from each grandparent,
it is that you inherit the versions of the genes
(we all have the ‘same’ genes).
“The method that determines which traits are inherited
from each parent by the offspring is known as homologous recombination,
and this process is (essentially) random,
and thus you end with ~50% of your traits
(the alleles of the genes)
from each parent,
and ~25% from each grandparent,
so you are right in this respect.
“This is, however, a generalization;
due to the chance nature of the recombination
it is entirely plausible that you may inherit more traits
from one grandparent
in comparison to another,
but this is unique to each individual
(with the exception of course of genetically identical twins).
1
“This comes down to the ever confusing use of gene to mean allele and loci.
Just as in the “How many genes..” Q you answered before,
the term gene is often used
for both leading to the confused idea
that we share 99% of our genes with chimpanzees
yet we only share 25% with our grandparents..
Alleles are all the different variants (or versions as you called them)
present at each loci (non-recombining region of DNA).
We share 25% of our ALLELES with our grandparents
(assuming no mutation and recombination)
and 99% of LOCI with chimpanzees.
“And we should wipe the word gene from the English language
and just use Allele and Loci!”
https://biology.stackexchange.com/questions/2684/do-we-get-1-4-of-our-genes-from-each-grandparent
Oh, gosh, which theories should I believe?
Who says you have to make up your mind?
Be wary of them if they do.
Look into what different people who study genetics say.
And get your feet out of the ECHO (OOOOOO) chamber.
Be wary of them if they do.
Look into what different people who study genetics say.
And get your feet out of the ECHO (OOOOOO) chamber.