Class 10 Practice - Level 2 - Heredity And Evolution - Set 2

Total question: 25

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

Which type of natural selection occurs when individuals with intermediate phenotypes are favoured?

Topic: Evolution

Directional selection

Stabilizing selection

Disruptive selection

Sexual selection

None

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

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

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

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

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

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

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

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Class 10 Practice - Level 2 - Heredity And Evolution - Set 2

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