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SingaporeBiologyQuick questions
Reproduction, Genetics and Inheritance
Quick questions on Monohybrid inheritance and variation explained: O-Level Biology
5short Q&A pairs drawn directly from our worked dot-point answer. For full context and worked exam questions, read the parent dot-point page.
What is setting out a genetic cross?Show answer
To predict the offspring of a cross, set out a clear genetic diagram:
What is variation?Show answer
Offspring vary, and variation comes in two kinds:
What is q1?Show answer
Define the term dominant allele. [1 mark]
What is q2?Show answer
A cross between two heterozygous plants () is made. State the expected phenotype ratio. [2 marks]
What is q3?Show answer
State whether blood group is an example of continuous or discontinuous variation, and explain why. [2 marks]
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