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WorksheetsKL-10 BIO QUIZ-II-I
Total questions: 10
Worksheet time: 20mins
In meiosis, recombination occurs in:
A) Metaphase I.
B) Prophase I.
C) Metaphase II.
D) Prophase II.
Which one of the following karyotypes is not compatible with survival to birth?
A) 47 + XY, 13 Choromosome
B) 47 + XX, 18 Choromosome
C) 47 + XY, 21 Choromosome
D) 45,Y
Male to male transmission is a key feature of which pattern of inheritance?
A) Autosomal dominant
B) Autosomal recessive
C) X-linked dominant
D) X-linked recessive
A piece of a geranium plant is cut and placed it in a jar of water. Several weeks later the piece has grown into a new plant.
Which one of the followings is true about the genetic relationship between the first plant and the new one? ( Geranium plant means: Sardunya Bitkisi )
A) The two plants are different genetically.
B) The two plants are slightly different genetically.
C) The two plants are genetically identical.
D) There is no way to know the genetic relationship.
Haemophilia A is a severe coagulation disorder that shows X-linked recessive inheritance. Red-green colour blindness also shows X-linked recessive inheritance. A man with both haemophilia A and colour blindness is referred for genetic counseling. Assume that his partner is not a carrier of either of these conditions.
Which one of the followings is correct?
A) The probability that each of his daughters will be a carrier of haemophilia A is 1 in 2.
B) The probability that each of his daughters will be a carrier of colour blindness is 1 in 2.
C) The probability that each of his daughters will be a carrier of both conditions is 1.
D) The probability that each of his sons will be affected with haemophilia A is 1 in 2.
In this pedigree II 1, is affected with an autosomal recessive disorder. The disease status for II 2 and 3 is unknown.
According to this; based on the genotypes marked in the pedigree II. Which one of the followings can be said about the number 2 individual in the family?
A) He is affected.
B) He is a carrier.
C) He is homozygous dominant unaffected.
D) The marker results are not informative
In this pedigree II 1, is affected with an autosomal dominant disorder. The disease status for II 2 and 3 is unknown.
According to this; based on the genotypes marked in the pedigree II. Which one of the followings can be said about the number 3 individual in the family?
A) She is affected.
B) She is a carrier.
C) She is homozygous unaffected.
D) The marker results are not informative.
In this pedigree II 3 and III 1 are affected with an X - linked recessive disorder.
According to this; which one of the followings is correct?
A) In the first family, the number 2 individual is a carrier.
B) In family number II, the individual number 3 is in the XRY genotype.
C) Genotype of girls XrXr in the family III.
D) The results are not informative.
In this pedigree I 1 and II 2 have Becker muscular dystrophy which shows X - linked recessive inheritance. III 2 has albinism which shows autosomal recessive inheritance with an incidence in the general population of 1 in 10 000. The disease status for both Becker muscular dystrophy and albinism is unknown for IV 1 and IV 2.
What is the probability that III 3 is a carrier of Becker muscular dystrophy?
A) 1/4
B) 2/3
C) 1/2
D) 1
In this pedigree II 1 is affected with an autosomal recessive disorder. The disease status for II 2 is unknown.
According to this; II. which one of the followings can be said about the number 2 individual in the family?
A) She is affected.
B) She is a carrier certainly.
C) II. the genotype of the number 1 individual in the family is homozygous dominant.
D) The gender of the number 1 individual in the 1st family does not affect the transmission of this trait.
