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Class 10 Practice - Level 2 - Heredity And Evolution - Set 2
Total question: 25
1.
What is the main function of transfer RNA (tRNA) in protein synthesis?
Topic:
Heredity
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
2.
Which type of natural selection occurs when individuals with intermediate phenotypes are favoured?
Topic:
Evolution
Directional selection
Stabilizing selection
Disruptive selection
Sexual selection
None
3.
Which of the following genetic disorders is caused by an autosomal recessive allele?
Topic:
Heredity
Sickle cell anaemia
Huntington's disease
Marfan syndrome
Achondroplasia
None
4.
Which of the following describes the concept of punctuated equilibrium?
Topic:
Evolution
Evolution occurs at a slow and steady pace.
Evolution occurs in rapid bursts followed by periods of stability.
Evolution is driven by genetic drift.
Evolution is influenced solely by natural selection.
None
5.
Which term describes the failure of homologous chromosomes or sister chromatids to separate properly during cell division?
Topic:
Heredity
Mutation
Crossing over
Nondisjunction
Segregation
None
6.
Which of the following is an example of allopatric speciation?
Topic:
Evolution
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
7.
Which of the following describes the inheritance pattern where both alleles in a heterozygote are fully expressed?
Topic:
Heredity
Complete dominance
Incomplete dominance
Codominance
Sex-linked inheritance
None
8.
What is the main difference between microevolution and macroevolution?
Topic:
Evolution
Microevolution refers to changes within a population, while macroevolution refers to changes that lead to the formation of new species.
Microevolution involves genetic drift, while macroevolution involves natural selection.
Microevolution occurs over long periods, while macroevolution occurs rapidly.
Microevolution involves mutation, while macroevolution involves gene flow.
None
9.
What is epistasis in genetics?
Topic:
Heredity
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
10.
Which of the following best describes genetic drift?
Topic:
Evolution
The adaptation of organisms to their environment
The movement of alleles between populations
Random changes in allele frequencies in a population
The selective breeding of organisms
None
11.
What is a pleiotropic gene?
Topic:
Heredity
A gene that has multiple alleles
A gene that affects more than one phenotype
A gene that is located on a sex chromosome
A gene that is involved in a metabolic pathway
None
12.
Which of the following processes can lead to sympatric speciation?
Topic:
Evolution
Geographic isolation
Genetic drift
Polyploidy
Natural selection
None
13.
What is a polygenic trait?
Topic:
Heredity
A trait controlled by multiple alleles of a single gene
A trait controlled by multiple genes
A trait influenced by the environment
A trait that shows complete dominance
None
14.
Which of the following is an example of directional selection?
Topic:
Evolution
Human birth weight, where most infants are born within a narrow weight range
The increase in size of beaks in a population of finches during a drought
The presence of both light and dark forms of peppered moths in industrial and rural areas
The persistence of multiple blood types in human populations
None
15.
Which of the following techniques is used to amplify a specific segment of DNA?
Topic:
Heredity
Gel electrophoresis
Polymerase chain reaction (PCR)
DNA sequencing
Cloning
None
16.
Which of the following best describes sexual selection?
Topic:
Evolution
The random changes in allele frequencies
The preferential mating of individuals with certain traits
The movement of alleles between populations
The mutation of genes
None
17.
Which of the following best describes the principle of independent assortment?
Topic:
Heredity
Genes for different traits are inherited together.
Alleles segregate randomly during gamete formation.
Genes located on the same chromosome are inherited together.
Genes for different traits can segregate independently during the formation of gametes.
None
18.
Which of the following is an example of a homologous structure?
Topic:
Evolution
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
19.
What is the main purpose of gene therapy?
Topic:
Heredity
To sequence an individual's entire genome
To introduce, remove, or alter genetic material within a person's cells to treat or prevent disease
To create genetically modified organisms (GMOs)
To amplify specific DNA segments for research
None
20.
Which of the following describes the concept of adaptive landscapes?
Topic:
Evolution
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
21.
Which of the following best describes genetic imprinting?
Topic:
Heredity
The expression of a gene depends on the parent of origin.
The alteration of gene expression without changing the DNA sequence.
The inheritance of traits from one parent only.
The random mutation of genes during gamete formation.
None
22.
Which of the following is an example of a prezygotic reproductive barrier?
Topic:
Evolution
Hybrid sterility
Hybrid inviability
Temporal isolation
Reduced hybrid viability
None
23.
Which of the following best describes a frameshift mutation?
Topic:
Heredity
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
24.
Which of the following is a key feature of the modern synthesis of evolutionary biology?
Topic:
Evolution
The incorporation of genetic principles with Darwinian evolution
The rejection of natural selection as a mechanism of evolution
The idea that evolution occurs only through mutation
The belief that species do not change over time
None
25.
Which of the following best describes a genetic map?
Topic:
Heredity
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
1 out of 25
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