Autosomal Recessive Trait

a. Usually appears in both sexes with equal frequency.

b. Tends to skip generations.

c. Affected offspring are usually born to unaffected parents.

d. When both parents are heterozygous, approximately one-fourth of the offspring will be affected.

e. Appears more frequently among the children of consanguineous marriages.

TLS Online TPP Program

#Id: 6825

#Unit 8. Inheritance Biology

Number of genotype = 3n

TLS Online TPP Program

#Id: 6826

#Unit 8. Inheritance Biology

Number of phenotype =2n+1

TLS Online TPP Program

#Id: 6827

#Unit 8. Inheritance Biology

One dominant polygene contribute=Max phenotype – Min phenotype

                                                              Number of dominant polygene in      

                                                               maximum phenotype

TLS Online TPP Program

#Id: 6828

#Unit 8. Inheritance Biology

2 QTL -

1/16, 4/16, 6/16, 4/16, 1/16 

maximum      intermediate      minimum

TLS Online TPP Program

#Id: 6829

#Unit 8. Inheritance Biology

AABB × aabb

   180cm 20cm

TLS Online TPP Program

#Id: 6830

#Unit 8. Inheritance Biology

3QTL-

AABBCC × aabbcc

 46cm 10cm