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Class 12
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Preparation and Analysis of Pedigree Chart
Preparation and Analysis of Pedigree Chart
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1)
By which of the following methods, a pattern of inheritance can be traced in a family?
Nuclear analysis
Chromosomal analysis
Cytoplasm analysis
Pedigree analysis
2)
Most studies on human genetics have been made through
Pedigree chart
Genetic engineering
Microscopic studies of chromosomes
Eugenics
3)
The symbol of empty circles used in pedigree analysis represents
Normal mother
Affected mother
Normal father
Carrier mother
4)
Brachydactyly signifies
Abnormal long fingers
Abnormal short knee
Abnormal long toes
Abnormal short fingers
5)
Presence of extra finger or toe is known as
Polydactyly
None of these
Marfan’s syndrome
Brachydactyly
6)
Polydactyly in man due to
Sex-linked recessive gene
Sex-linked dominant gene
Autosomal dominant gene
Autosomal recessive gene
7)
Which of the following is not a characteristic feature of Down’s syndrome?
Small round head
Partially open mouth
Furrowed tongue
Very tall
8)
Which of the following type of inheritance is shown by colour blindness?
Zig-zag inheritance
Chromosomal inheritance
Criss-cross inheritance
Up-down inheritance
9)
Which of the following is not an example of aneuploidy?
Klinefelter’s syndrome
Down’s syndrome
Phenylketonuria
Turner’s syndrome
10)
How can a female be hemophilic?
Both mother and father are hemophilic
Both mother and father are carriers
Mother is hemophilic and father is normal
Mother is a carrier and the father is hemophilic
