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Class 10 Quiz Level 2 (Moderate) – Heredity and Evolution
Total questions: 20
1.
Which process during meiosis increases genetic variation by exchanging segments of DNA between homologous chromosomes?
Topic:
Heredity
Deselect Answer
Mutation
Crossing over
Independent assortment
Random fertilization
None
2.
What is the significance of the lac operon in prokaryotic gene regulation?
Topic:
Heredity
Deselect Answer
It regulates the synthesis of RNA.
It controls the replication of DNA.
It regulates the metabolism of lactose in bacteria.
It ensures proper cell division.
None
3.
Which of the following best describes adaptive radiation?
Topic:
Evolution
Deselect Answer
The gradual change of species over time
The extinction of a species
The rapid evolution of diversely adapted species from a common ancestor
The convergence of different species into a similar form
None
4.
What is the role of ribosomal RNA (rRNA) in the process of translation?
Topic:
Heredity
Deselect Answer
It carries amino acids to the ribosome.
It brings the genetic code from DNA to ribosomes.
It catalyzes the formation of peptide bonds.
It forms the structural and functional components of ribosomes.
None
5.
In a monohybrid cross of a homozygous dominant and a homozygous recessive parent, what is the expected genotype ratio in the F2 generation?
Topic:
Heredity
Deselect Answer
1:2:1
3:1
1:1
9:3:3:1
None
6.
Which type of natural selection results in a population with a higher frequency of a particular phenotype over time?
Topic:
Evolution
Deselect Answer
Disruptive selection
Stabilizing selection
Directional selection
Sexual selection
None
7.
What is genetic recombination and why is it important?
Topic:
Heredity
Deselect Answer
The process of copying DNA
The exchange of genetic material between different chromosomes during meiosis
The random mutation of genes
The cloning of organisms
None
8.
In a pedigree chart, what does a square symbolize?
Topic:
Heredity
Deselect Answer
A female
A male
An affected individual
A carrier
None
9.
What is a genetic locus?
Topic:
Heredity
Deselect Answer
A protein that binds DNA
The physical location of a gene on a chromosome
A type of genetic mutation
A section of non-coding DNA
None
10.
Which of the following mechanisms is most likely to increase genetic variation in a population?
Topic:
Evolution
Deselect Answer
Genetic drift
Inbreeding
Natural selection
Mutation
None
11.
What is epistasis in genetics?
Topic:
Heredity
Deselect Answer
A type of mutation
A form of genetic recombination
The interaction of different genes to affect a phenotype
The inheritance of traits from one parent
None
12.
Which of the following is an example of allopatric speciation?
Topic:
Evolution
Deselect Answer
The divergence of apple maggot flies on different host plants
The formation of new species in the same geographical area
The evolution of Darwin's finches on different islands
The development of resistance to pesticides
None
13.
Which of the following techniques is used to amplify a specific segment of DNA?
Topic:
Heredity
Deselect Answer
Gel electrophoresis
Polymerase chain reaction (PCR)
DNA sequencing
Cloning
None
14.
Which of the following genetic disorders is caused by an autosomal recessive allele?
Topic:
Heredity
Deselect Answer
Sickle cell anaemia
Huntington's disease
Marfan syndrome
Achondroplasia
None
15.
What is the main function of transfer RNA (tRNA) in protein synthesis?
Topic:
Heredity
Deselect Answer
It carries the genetic code from DNA to ribosomes.
It provides the template for protein synthesis
It transfers amino acids to the ribosome.
It forms the structure of ribosomes.
None
16.
Which of the following processes can lead to sympatric speciation?
Topic:
Evolution
Deselect Answer
Geographic isolation
Genetic drift
Polyploidy
Natural selection
None
17.
Which of the following best describes a genetic map?
Topic:
Heredity
Deselect Answer
A diagram showing the physical structure of a chromosome
A chart of all the genes in an organism
A representation of the relative positions of genes on a chromosome based on recombination frequencies
A sequence of nucleotides in a gene
None
18.
Which of the following describes the concept of adaptive landscapes?
Topic:
Evolution
Deselect Answer
The distribution of traits within a population
The fitness of different genotypes in varying environments
The genetic variation within a population
The migration patterns of species
None
19.
Which of the following is an example of a homologous structure?
Topic:
Evolution
Deselect Answer
The wings of insects and birds
The flippers of dolphins and the hands of humans
The eyes of octopuses and humans
The fins of fish and the legs of insects
None
20.
Which of the following best describes a frameshift mutation?
Topic:
Heredity
Deselect Answer
A mutation that changes a single nucleotide base
A mutation that inserts or deletes nucleotides, shifting the reading frame
A mutation that occurs in a non-coding region of DNA
A mutation that involves the exchange of genetic material between chromosomes
None
1 out of 20
Time's up
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