The genes encoding the translesion polymerases are expressed as part of a pathway known as the SOS response. 

TLS Online TPP Program

#Id: 6751

#Unit 8. Inheritance Biology

TLS Online TPP Program

#Id: 6752

#Unit 8. Inheritance Biology

The exchange of bacterial genes clearly required direct contact, between the bacterial cells

TLS Online TPP Program

#Id: 6753

#Unit 8. Inheritance Biology

Lederberg and Tatum’s experiment demonstrated that bacteria undergo genetic exchange.

TLS Online TPP Program

#Id: 6754

#Unit 8. Inheritance Biology

TLS Online TPP Program

#Id: 2046

#Unit 8. Inheritance Biology

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: 2047

#Unit 8. Inheritance Biology

Autosomal Dominant Trait

a. Usually appears in both sexes with equal frequency.

b. Both sexes transmit the trait to their offspring.

c. Does not skip generations.

d. Affected offspring must have an affected parent unless they possess a new mutation.

e. When one parent is affected (heterozygous) and the other parent is unaffected, approximately half of the offspring will be affected.

f. Unaffected parents do not transmit the trait.