Is long hair dominant or recessive?
(This is a partial inquiry lab to compare the inheritance of hair length in cats. Short hair is dominant while long hair is recessive in cats.) Using supporting evidence, students will show that traits are transferred from a parent organism to its off- spring.
Is FGF5 recessive?
Results: We identified a recessive c. 433_434delAT frameshift deletion in FGF5, present in Poitou and three other donkey breeds and a recessive nonsense c. 245G > A substitution, present in Poitou and four other donkey breeds.
What is the genotype of long haired cat?
Cats with M1/M1, M2/M2, M3/M3, or M4/M4 genotype have long hair. They will transmit their long hair variant to all of their offspring. If bred to a long-haired mate, they will produce only long-haired kittens.
Is short hair dominant or recessive?
Question : Short hair is due to a dominant gene L and long ahir to its recessive allele 1 (in rabbit). A cross between a short-haired female and a long haired male produces a litter of 1 long haired and 7 short haired bunnies.
What is the recessive trait of offspring?
Only individuals with an aa genotype will express a recessive trait; therefore, offspring must receive one recessive allele from each parent to exhibit a recessive trait. One example of a recessive inherited trait is a smooth chin, as opposed to a dominant cleft chin.
Is long hair in dogs recessive or dominant?
In most dogs, coat length is controlled by a single gene, called FGF5. Long hair is a recessive trait, which means that the variant of FGF5 coding for a long coat needs to be inherited from both parents.
What is the L gene in French Bulldogs?
Long haired French Bulldogs carry two copies of a recessive long hair gene called L4. They have medium length wavy hair over their ears, head, back and chest, which gives them a fluffy appearance.
How is FGF5 produced?
FGF5 is produced in the outer root sheath of the hair follicle as well as perifollicular macrophages, with maximum expression occurring in the late anagen phase of the hair cycle. The receptor for FGF5, FGFR1, is largely expressed in the dermal papilla cells of the hair follicle.
What is a semi long haired cat?
The British Semi-longhair cat is a medium-length-hair version of the British Shorthair. Apart from its coat length, it is identical to the British Shorthair. During the late 19th century and early 20th century, the Persian was considered the long-haired analogue of the British Shorthair.
What does agouti mean in cats?
Agouti (A) – the natural “wild” gene that is the basis of the tabby cat. The base agouti pattern is bands of black on a yellow background in wild mice, rabbits and cats; in the cat this is overlaid with one of the tabby patterns.
Can two long-haired dogs have a short haired puppy?
Thus, it is possible for two short-haired dogs (if they are both carriers of the long-haired allele, L/l) to have a litter of both long-haired and short-haired pups. If two carriers breed, there is 25% chance per puppy of inheriting the long-haired gene.
What is an example of a recessive trait?
Examples of Recessive Traits For example, having a straight hairline is recessive, while having a widow’s peak (a V-shaped hairline near the forehead) is dominant. Cleft chin, dimples, and freckles are similar examples; individuals with recessive alleles for a cleft chin, dimples, or freckles do not have these traits.
Which alleles is always written first?
The alleles are represented by letters. The letter chosen is usually the first letter of the trait.
Can 2 white dogs have black puppies?
Of course, this can be the simple case of genetics – sometimes two white canines can produce black puppies if they both carry the dominant “black” gene. A color from generations ago can pop up in any puppy.
What color is dominant in dogs?
There are two brown alleles, B (dominant brown) and b (recessive brown). It takes two recessives (bb) to dilute black pigment to brown. For dogs in the red or yellow pigment family (phaeomelanin), the brown allele can change the color of the nose and foot pads to brown.
What 2 dogs make a fluffy French bulldog?
You would have to pair two Frenchies which both have the Lh gene. If you breed two Frenchies with the Sh/Lh combination, then only 1 in 4 of their pups will have long hair. If you breed two Frenchies which both have the Lh/Lh combination, all of their pups will have long hair.
Where is FGF5 produced?
Does FGF5 increase hair growth?
An overabundance of FGF5 in the scalp can lead to an increase in hair fall, slower growth, and a shortened hair cycle.
What kind of cat has long black hair?
1. Bombay. The Bombay is known for his sleek, black coat (that some say resembles patent leather). This designer breed was developed to retain the deep black color of the American shorthair and the sleek, muscular body of the Burmese.