Biology for IGCSE & O level - Inheritance (Section 12)
1
What is a codon?
Answer
(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?
Answer
(C)
Replication
3
What are the possible products of mitosis?
Answer
(A)
Two genetically identical cells.
4
If two genes are located close together on the same chromosome, what is their relationship?
Answer
A
D
5
What is the significance of the law of segregation?
Answer
(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)
Answer
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?
Answer
(C)
Incomplete dominance
8
Which of the following is a characteristic of a diploid cell?
Answer
(D)
It contains two sets of chromosomes.
9
What is the result of Meiosis I?
Answer
(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?
