The questions in the Theory test should be grouped by domains in about the following percentages: Cell Biology (20%), Animal anatomy & Physiology (25%), Plant Anatomy and Physiology (15%), Ethology (5%), Genetics & Evolution (20%), Ecology (10%), Biosystematics (5%).
Berikut ini contoh soal Olimpiade Biologi Internasional (IBO) SMA.
What is the probability for exactly three children to have a dominant phenotype in a family with four children of heterozygous parents (Aa x Aa)?
Berikut ini contoh soal Olimpiade Biologi Internasional (IBO) SMA.
What is the probability for exactly three children to have a dominant phenotype in a family with four children of heterozygous parents (Aa x Aa)?
A. 2%
B. 56%
C. 36%
D. 44%
E. 60%
Mouse hair colour is determined by two unlinked loci – C and B. Mice with genotype CC or Cc are agouti, and with genotype cc-albino because pigment production in hair is blocked. At the second locus, the B allele is dominant to the b, and the B allele determines black agouti coat colour, but b - brown agouti coat colour. A mouse with a black agouti coat is mated with an albino mouse of genotype bbcc. Half of the offspring were albino, one quarter - black agouti, and one quarter were brown agouti. What was the genotype of the black parent?
A. BBCC
B. BbCc
C. BbCC
D. Bbcc
E. BBcc
After graduation, you and 19 friends (sex ratio close 1:1) build a raft, sail to a deserted island, and start a new population, totally isolated from the world. Two of your friends carry (that is, are heterozygous for) the recessive c allele, which in homozygotes causes cystic fibrosis. What will be the incidence of cystic fibrosis on your island, if you assume that the frequency of this allele does not change during the growth of population?
A. 0.05 %
B. 0.0025 %
C. 0.25 %
D. 0.5 %
E. 0.10 %
B. 56%
C. 36%
D. 44%
E. 60%
Mouse hair colour is determined by two unlinked loci – C and B. Mice with genotype CC or Cc are agouti, and with genotype cc-albino because pigment production in hair is blocked. At the second locus, the B allele is dominant to the b, and the B allele determines black agouti coat colour, but b - brown agouti coat colour. A mouse with a black agouti coat is mated with an albino mouse of genotype bbcc. Half of the offspring were albino, one quarter - black agouti, and one quarter were brown agouti. What was the genotype of the black parent?
A. BBCC
B. BbCc
C. BbCC
D. Bbcc
E. BBcc
After graduation, you and 19 friends (sex ratio close 1:1) build a raft, sail to a deserted island, and start a new population, totally isolated from the world. Two of your friends carry (that is, are heterozygous for) the recessive c allele, which in homozygotes causes cystic fibrosis. What will be the incidence of cystic fibrosis on your island, if you assume that the frequency of this allele does not change during the growth of population?
A. 0.05 %
B. 0.0025 %
C. 0.25 %
D. 0.5 %
E. 0.10 %
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Kisi-kisi Materi Olimpiade Biologi Internasional (IBO)
Soal dan Kisi-kisi Materi Olimpiade Biologi Internasional (IBO)
Soal dan Kisi-kisi Materi Olimpiade Biologi Internasional (IBO)
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