1.The expected F2 genotype and phenotype ratios are identical for incomplete dominance
inheritance. True or False?
2. An intermediate phenotype is observable in codominance. True or Flase
3. What is the relationship between absorbance and concentration? A) Linear B) Exponential
C) Quadratic D) No relationship
4. If you place 2 ml of a 6 mg/mL solution of DNA into a test tube and dilute it with 2 mL of
distilled water, what is the concentration of the resulting DNA solution? Give anwer in mg/mL
Solution
1. TRUE. The expected F2 genotype and phenotype ratios are both 1:2:1 for incomplete
dominance inheritance.
2. FALSE. Intermediate phenotype (blending inheritance) is obtained in incomplete dominance,
not in codominance. In codominance, both (or all) the dominant alleles are equally expressed;
e.g. AB blood group in the ABO blood group system.
3. A) Linear. Absorbance (A) is related to concentration (c) as: A = cl; i.e. A c
4. We shall use the formula of equivalence i.e. C1V1 = C2V2
Given that, C1= 6 mg/mL, V1= 2 mL, C2= to be determined, V2= 2+2 = 4 mL
C2 = C1V1/V2 = (6×2)/4 = 3 mg/mL.
1.The expected F2 genotype and phenotype ratios are identical for in.pdf
1. 1.The expected F2 genotype and phenotype ratios are identical for incomplete dominance
inheritance. True or False?
2. An intermediate phenotype is observable in codominance. True or Flase
3. What is the relationship between absorbance and concentration? A) Linear B) Exponential
C) Quadratic D) No relationship
4. If you place 2 ml of a 6 mg/mL solution of DNA into a test tube and dilute it with 2 mL of
distilled water, what is the concentration of the resulting DNA solution? Give anwer in mg/mL
Solution
1. TRUE. The expected F2 genotype and phenotype ratios are both 1:2:1 for incomplete
dominance inheritance.
2. FALSE. Intermediate phenotype (blending inheritance) is obtained in incomplete dominance,
not in codominance. In codominance, both (or all) the dominant alleles are equally expressed;
e.g. AB blood group in the ABO blood group system.
3. A) Linear. Absorbance (A) is related to concentration (c) as: A = cl; i.e. A c
4. We shall use the formula of equivalence i.e. C1V1 = C2V2
Given that, C1= 6 mg/mL, V1= 2 mL, C2= to be determined, V2= 2+2 = 4 mL
C2 = C1V1/V2 = (6×2)/4 = 3 mg/mL
