Phenotypes associated with this allele

• Allele Symbol: Hr^ba
• Allele Name: bald
• Allele ID: MGI:1856058
• Summary: 1 genotype

Jump to	Allelic Composition	Genetic Background	Genotype ID
hm1	Hr^ba/Hr^ba	Not Specified	MGI:3835482

Genotype
MGI:3835482

hm1

• Allelic Composition: Hr^ba/Hr^ba
• Genetic Background: Not Specified

• ♀: phenotype observed in females
• ♂: phenotype observed in males
• N: normal phenotype

growth/size/body

decreased body weight ( J:13067 )

• mice are smaller by weight than littermates at 14 days of age

endocrine/exocrine glands

abnormal nipple development ( J:13067 )

♀ • a few rudimentary nipples may be present

absent mammary gland ( J:13067 )

♀ • mammary tissue is completely lacking

decreased nipple number ( J:13067 )

♀

integument

abnormal nipple development ( J:13067 )

♀ • a few rudimentary nipples may be present

absent mammary gland ( J:13067 )

♀ • mammary tissue is completely lacking

decreased nipple number ( J:13067 )

♀

abnormal coat appearance ( J:13067 )

hairless ( J:13067 , J:64270 )

• the head is bald by 19 days of age (J:13067)

• the mouse is completely bald within 22-28 days of age (J:13067)

• mice are phenotypically intermediate between the alleles hairless and rhino (J:64270)

sparse hair ( J:13067 )

• at 16 days of age hair above the eyes and around the nose starts to fall out

• at 17-18 days hair on the head undergoes thinning

loss of vibrissae ( J:13067 )

• whiskers are lost after 28-30 days but shorter, curved whiskers sometimes appear after several weeks

translucent skin ( J:13067 )

• the skin of young mice is smooth, flexible and semi-transparent

wrinkled skin ( J:13067 )

• skin is mildly wrinkled and most obvious on neck and head where wrinkles appear by 35 days of age

abnormal skin condition ( J:13067 )

thick skin ( J:13067 )