Genetics
Each subtopic includes About section, revision page link, 10 preview questions, and practice CTAs.
Preview questions (no answers)
- 1.
If a researcher compares the DNA sequences of two different alleles of the same gene, what are they most likely to find?
A.They are completely different lengths
B.They have very different sugar-phosphate backbones
C.They differ by only a small number of bases
D.One is made of RNA and the other DNA
- 2.
Which three components make up a single DNA nucleotide within a gene?
A.Sugar, lipid, base
B.Phosphate, sugar, base
C.Protein, amino acid, base
D.Phosphate, ribose, uracil
- 3.
Approximately how many genes are found in the bacterium ?
A.100
B.4,400
C.21,000
D.150,000
Download the worksheet for Genetics - Genes to practice offline. It includes additional chapter-level practice questions.
Preview questions (no answers)
- 1.
What are the chromosomes that do not determine sex called?
A.Sex chromosomes
B.Autosomes
C.Allosomes
D.Plasmids
- 2.
Which of these represents the diploid number of chromosomes in humans?
A.B.C.D. - 3.
A cell with two of each type of chromosome is called:
A.Haploid
B.Polyploid
C.Diploid
D.Aneuploid
Download the worksheet for Genetics - Chromosomes to practice offline. It includes additional chapter-level practice questions.
Preview questions (no answers)
- 1.
What is a zygote?
A.A haploid egg cell
B.A haploid sperm cell
C.A diploid cell resulting from the fusion of two gametes
D.A type of chromosome found in Meiosis II
- 2.
Which phase of meiosis follows immediately after Metaphase I?
A.Prophase I
B.Anaphase I
C.Metaphase II
D.Anaphase II
- 3.
What is the significance of meiosis in evolution?
A.It prevents any change in the DNA of a species
B.It creates genetic diversity which natural selection can act upon
C.It allows organisms to reproduce asexually
D.It ensures that all offspring are clones of the mother
Download the worksheet for Genetics - Meiosis to practice offline. It includes additional chapter-level practice questions.
Preview questions (no answers)
- 1.
What is the result when a cell undergoes meiosis in terms of allele count for a single gene?
A.The daughter cells have double the alleles
B.The daughter cells have the same number of alleles as the parent
C.The daughter cells have half the number of alleles as the parent
D.The daughter cells have no alleles
- 2.
In the case of sickle cell anemia, individuals with one copy of the mutated allele usually:
A.Die at birth
B.Show no symptoms but are carriers
C.Have severe symptoms
D.Are resistant to malaria
- 3.
Which of the following describes the generation?
A.The first generation of offspring from a cross of the parental generation
B.The parents used in a genetic cross
C.The second generation of offspring
D.The total number of alleles in a population
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 11 IB.
Preview questions (no answers)
- 1.
Why is DNA profiling a reliable tool in forensic science?
A.Everyone has the same DNA sequence
B.Every individual (except identical twins) has a unique DNA profile
C.DNA profiles change as a person gets older
D.DNA can only be found in blood
- 2.
What results from a restriction enzyme that cuts straight across both DNA strands?
A.Sticky ends
B.Blunt ends
C.Circular DNA
D.RNA strands
- 3.
Which of the following is an example of a GMO (Genetically Modified Organism)?
A.A mule (cross between a horse and a donkey)
B.Bacteria that produce human insulin
C.A purebred poodle
D.A seedless watermelon produced by selective breeding
Download the worksheet for Genetics - Genetic Modification and Biotechnology to practice offline. It includes additional chapter-level practice questions.