Practice Questions

  1. Home
  2. Free Resources
  3. Practice Questions
  4. 17848
TLS Online TPP Program

#Question id: 4722

Penetrance is the percentage of individuals having a particular genotype, who express the associated phenotype, following statement, are correct about Penetrance.

#XL - T Zoology

  1. Incomplete penetrance of dominant mutant gene must produced mutant phenotype. 

  2. A gene might encode an enzyme that produces a particular phenotype within limited temperature due to complete penetrance

  3. The genotype does always produce the expected phenotype, a phenomenon termed incomplete penetrance.

  4. Penetrance variability of sex influence gene is differ in male and female

More Questions
TLS Online TPP Program

#Question id: 4720

#XL - R Botany

Which of the following phenomenon, the differential expression of genetic material depending on whether it is inherited from the male or female parent, is called 
TLS Online TPP Program

#Question id: 4721

#XL - T Zoology

PKU, results from a recessive allele; persons homozygous for this allele, if untreated, exhibit mental retardation, blue eyes, and light skin color. This character categorized as
TLS Online TPP Program

#Question id: 4723

#XL - T Zoology

The most common cause of the pleiotropic effect of gene is due to
TLS Online TPP Program

#Question id: 4723

#XL - R Botany

The most common cause of the pleiotropic effect of gene is due to
TLS Online TPP Program

#Question id: 4724

#XL - R Botany

Which of the following are true about crossing over ?
TLS Online TPP Program

#Question id: 4725

#XL - T Zoology

Ptosis (droopy eyelid) may be inherited as a dominant human trait. Among 30 people who are heterozygous for the ptosis allele, 10 have ptosis and 20 have normal eyelids. What is the penetrance for ptosis?