Biology for IGCSE & O level - Inheritance (Section 12)
1
What is a codon?
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(B)
A three-base sequence on an mRNA molecule that codes for an amino acid.
2
What process is responsible for the production of identical copies of chromosomes?
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(C)
Replication
3
What are the possible products of mitosis?
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(A)
Two genetically identical cells.
4
If two genes are located close together on the same chromosome, what is their relationship?
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A
D
5
What is the significance of the law of segregation?
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(A)
Alleles for a trait separate during gamete formation.
6
Which of the following are sources of genetic variation during sexual reproduction? (Select all that apply)
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A
B
7
In a cross of two true-breeding plants, one with red flowers and one with white flowers, all the offspring have pink flowers. What type of inheritance is this an example of?
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(C)
Incomplete dominance
8
Which of the following is a characteristic of a diploid cell?
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(D)
It contains two sets of chromosomes.
9
What is the result of Meiosis I?
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(B)
Two haploid cells
10
If a woman with blood type A has a child with blood type O, what are the possible blood types of the father?
