WorksheetsPrinciples of Inheritance 2
Total questions: 10
Worksheet time: 7mins
The fruit fly Drosophila melanogaster were used for genetic studies by
Sutton and Boveri
Gregor Johann Mendel
T H Morgan
Which of the following is not about Drosophila used by Morgan in his experiments?
They can be grown in simple synthetic medium
They completed life cycle in 2 years
A single mating produce large number of progeny flies
There was a clear differentiation of male and female sexes.
What does this symbol used in pedigree charts, represent?
Parents and children
Mating
Consanguineous mating
Which of the following is a chromosomal disorder?
Turner's syndrome
Thalassemia
Phenylketonuria
Color blindness
The possibility of a female becoming haemophilic is rare, because
mother of female has to be carrier and father haemophilic(unviable in later life)
father of female has to be carrier and mother haemophilic
both mother and father should be carrier
Skin color shows polygenic inheritance in humans, the genotype with three dominant alleles and three recessive alleles will have _______________ skin color.
dark
light
intermediate
Which of the following is not a phenotypic expression of phenyl ketonuria?
Mental retardation
Reduced skin and hair pigmentation
excretion of phenyl pyruvic acid through urine
Non stop bleeding
Male honey bees produce sperms by _____________ cell division, to form 16 chromosomes in each sperm.
Mitosis
Meiosis
The mother is not herself colorblind because the gene for colorblindness is ________________, so the effect is suppressed by the normal gene present on other X chromosome.
recessive
dominant
Which of the following types of Thalassemia, is due to mutation of Hb A1 and Hb A2 genes present on chromosome number 16 of each parent?
Alpha Thalassemia
Beta Thalassemia
