Genetics
Each subtopic includes About section, revision page link, 10 preview questions, and practice CTAs.
Preview questions (no answers)
- 1.
What type of mutation is responsible for the development of sickle cell anemia?
A.Insertion mutation
B.Deletion mutation
C.Base substitution mutation
D.Chromosomal translocation
- 2.
Which of the following was a primary objective and outcome of the Human Genome Project (HGP)?
A.The creation of a synthetic human being
B.The mapping of every single protein-to-protein interaction in the body
C.To sequence the entire base sequence of human DNA
D.To prove that humans have the largest genome of all living organisms
- 3.
Which term refers specifically to the position of a gene on a particular type of chromosome?
A.Allele
B.Locus
C.Genome
D.Genotype
Download the worksheet for Genetics - Genes to practice offline. It includes additional chapter-level practice questions.
Preview questions (no answers)
- 1.
Where are plasmids naturally found?
A.Inside the nucleus of animal cells.
B.Within the mitochondria of plant cells.
C.In the cytoplasm of some prokaryotes.
D.Bound to histone proteins in eukaryotes.
- 2.
If a species has a diploid number () of 48, how many chromosomes will be present in its gametes?
A.96
B.48
C.24
D.12
- 3.
Which of the following describes a pair of homologous chromosomes?
A.Two chromosomes with the same sequence of genes but potentially different alleles.
B.Two chromosomes joined by a centromere during mitosis.
C.Chromosomes inherited from only one parent.
D.A pair of chromosomes that always contain identical alleles for every gene.
Download the worksheet for Genetics - Chromosomes to practice offline. It includes additional chapter-level practice questions.
Preview questions (no answers)
- 1.
In the following flowchart representing the life cycle of a sexually reproducing organism, which process is indicated by the label 'X'?
A.Mitosis
B.Meiosis
C.Fertilization
D.DNA Replication
- 2.
At which stage of meiosis does the process of crossing over occur?
A.Metaphase I
B.Anaphase II
C.Prophase II
D.Prophase I
- 3.
If a parent cell has a diploid number of , how many chromosomes will be present in each daughter cell at the end of Meiosis II?
A.24
B.12
C.6
D.3
Download the worksheet for Genetics - Meiosis to practice offline. It includes additional chapter-level practice questions.
Preview questions (no answers)
- 1.
Which term describes the specific location of a gene on a chromosome?
A.Allele
B.Locus
C.Centromere
D.Genotype
- 2.
A woman with blood type A (genotype ) and a man with blood type B (genotype ) have a child. Which of the following blood types could the child potentially have?
A.Only Type AB
B.Only Type A or Type B
C.Type A, B, or AB only
D.Type A, B, AB, or O
- 3.
Which process determines the biological sex of an individual in humans as shown in the diagram of gamete fusion?
A.The type of autosome carried by the egg cell
B.The type of sex chromosome carried by the sperm cell
C.The age of the mother at the time of conception
D.The total number of chromosomes in the zygote
Download the worksheet for Genetics - Inheritance to practice offline. It includes additional chapter-level practice questions.
Genetic modification and biotechnology
SubtopicGenetic modification and biotechnology under Genetics for Grade 12 IB.
Preview questions (no answers)
- 1.
Which of the following is an example of a natural method of cloning?
A.Production of Bt corn
B.Formation of identical twins from a single zygote
C.Therapeutic cloning of stem cells
D.Inserting human insulin genes into bacteria
- 2.
Which process is used to amplify small quantities of DNA for analysis, such as at a crime scene?
A.Somatic cell nuclear transfer
B.Gel electrophoresis
C.DNA profiling
D.Polymerase Chain Reaction (PCR)
- 3.
In gel electrophoresis, DNA fragments are separated based on which physical properties?
A.Charge and polarity
B.Size and charge
C.Nitrogenous base sequence
D.Type of pentose sugar
Download the worksheet for Genetics - Genetic modification and biotechnology to practice offline. It includes additional chapter-level practice questions.