In a family, the two parents have blood groups of $$$A$$$ and $$$B$$$ and the three children have blood groups of $$$B, B$$$ and $$$O$$$. What are the genotypes of the parents?

$I^{A} I^{A}$ and $I^{B} I^{B}$

$I^{A} I^{B}$ and $I^{A} I^{\circ}$

$\mathrm{I}^{\mathrm{A}} \mathrm{I}^{\mathrm{O}}$ and $\mathrm{I}^{\mathrm{B}} \mathrm{I}^{\mathrm{O}}$

$I^{B} I^{0}$ and $I^{B} I^{A}$

Biology

IGCSE&ALevel

CAIE

Exam No：0610_s24_qp_22 Year：2024 Question No：33

Answer:

Knowledge points:

19.4.1 Define population as a group of organisms of one species, living in the same area, at the same time

19.4.10 Explain the factors that lead to each phase in the sigmoid curve of population growth, making reference, where appropriate, to the role of limiting factors

19.4.2 Identify and state the factors affecting the rate of population growth for a population of an organism, limited to food supply, predation and disease

19.4.3 Identify and state the factors affecting the rate of population growth for a population of an organism, limited to food supply, predation and disease

19.4.4 Identify and state the factors affecting the rate of population growth for a population of an organism, limited to food supply, predation and disease

19.4.5 Discuss the increase in human population size over the past 250 years and its social and environmental implications

19.4.6 Interpret graphs and diagrams of human population growth

19.4.7 Define community as all of the populations of different species in an ecosystem

19.4.8 Define ecosystem as a unit containing the community of organisms and their environment, interacting together, e.g. a decomposing log, or a lake

19.4.9 Identify the lag, exponential (log), stationary and death phases in the sigmoid population growth curve for a population growing in an environment with limited resources

In a family, the two parents have blood groups of $$\(A\)$$ and $$\(B\)$$ and the three children have blood groups of $$\(B, B\)$$ and $$\(O\)$$. What are the genotypes of the parents?

Answer:

Knowledge points:

Solution:

In a family, the two parents have blood groups of $$\(A\)$$ and $$\(B\)$$ and the three children have blood groups of $$\(B, B\)$$ and $$\(O\)$$. What are the genotypes of the parents?

Answer:

Knowledge points:

Solution:

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