In: Biology
Which one of these is not an example of a quantitative trait?
Select one:
a. muscle mass in pigs
b. number of bristles on the thorax of Drosophila melanogaster
c. egg production in chickens
d. stamen lengths in monkey flowers
e. sickle cell trait in humans
Option E- sickle cell trait in humans.
Quantitative trait is a measurable phenotype which can vary among individuals over a range of Values.
Some Examples -
1.Height
2.Weight
3.Blood Pressure.
Qualitative Trait cannot be Measured or Quantified is is Considered either present, or Absent.
For Example-
1.Colour of a Flower-Red,Yellow etc
2.ABO Blood Group in Humans.
3.Sickel Cell trait.
In the Given Question-
a. muscle mass in pigs
b. number of bristles on the thorax of Drosophila melanogaster
c. egg production in chickens
d. stamen lengths in monkey flowers
ALl the four (a,b,c,d) are Phenotypes that can be Measurable or Quantified.Hence they are Quantitative Trait.
But
Option e-sickle cell trait in humans cannot be Quantified.It is Either the Trait is Absent or Present.
Sickle cell disease is an autosomal recessive inherited disorder resulting in qualitative mutation of the hemoglobin in RBC