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Recessive Vs Dominant Traits
By the intelligent application of genetic principles we can choose to
reinforce traits that we consider desirable and reduce the incidence of
those we feel are detrimental by trying to ensure that our litters are as
homozygous as possible for those alleles that produce the desired effect. An
animal that has a high percentage of its genes in the homozygous state will
pass those features on with a great deal of consistency, and is said to be
"pre potent" for those features.
Summary
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Dominant Traits |
Recessive Traits |
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Do not skip generations
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Generally affect a large # of
progeny
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Only animals showing the trait
carry it
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There is less danger of continuing
undesirable- desirable traits
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The trait may come from just one
parent
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The trait may skip one or more
generations
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Generally affect a small #
of progeny
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Only animals homozygous for the
trait exhibit it
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Heterozygous animals can only be
determined by mating, so there is more danger of continuing
undesirable traits
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The trait, when seen must come
from both parents
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Genetically Dominant and Recessive Traits
| Dominant Traits |
Recessive Traits |
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Long Head
Large Or Long ears
Low set ears
Wide ear leather
Coarse skull
Short foreface
Erect ears
Dark eye
Normal eye
Brown eye
Wire, short or curly
coat
Poor lay back
Poorly angulated stifle
High set tail
Heavy bone
Deep chest
Straight topline
Good spring of rib
Short stifle
Light pigment
Normal hearing
Good eyesight
Good eye pigment
Self-color
Black nose
Good mouth
Normal palate
Normal lip
Straight tail |
Short Head
Small or Short ears
High set ears
Narrow ear leather
Fine skull
Long foreface
Drop of tipped ears
Light eye
Large bulging eyes
Blue eye
Smooth long or straight
coat
Good lay back
Well angulated stifle
Low set tail
Light Bone
Shallow chest
Sway back
Poor spring of rib
Long stifle
Dark pigment
Deafness
Night blindness
Wall eyes
Parti-Color
Dudley nose
Overshot or undershot
Cleft palate
Hair lip
Kinked or bent tail |
Source: Can't remember where I
got this (it's not mine). If you know and would be kind enough to let me
know, I would happily put a proper reference.
See also the article
Planned Breeding by Lloyd C.
Brackett and the Maternal
Grandsire Effect by Cindy Vogels, both good articles.
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