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