Genetic Concepts and Terminology Quiz

Test your knowledge with questions on genes, heredity, Punnett squares, DNA replication & genetic disorders. Explore genetic terminology now!

#1

What is the basic unit of heredity that carries genetic information?

Enzyme
Gene
Chromosome
Nucleotide
#2

What is the name of the process by which DNA is copied to produce an identical strand of DNA?

Translation
Transcription
Replication
Recombination
#3

What is the name of the DNA structure that forms when two complementary strands twist around each other?

Double helix
Triple helix
Quadruple helix
Single strand
#4

Which genetic disorder is characterized by the presence of an extra copy of chromosome 21?

Hemophilia
Down syndrome
Turner syndrome
Cystic fibrosis
#5

In a pedigree chart, what symbol is used to represent a male?

Square
Circle
Diamond
Triangle
#6

Which type of cell division is responsible for the formation of gametes (sperm and egg cells)?

Mitosis
Meiosis
Binary fission
Budding
#7

What is the term for the specific location of a gene on a chromosome?

Allele
Locus
Phenotype
Genotype
#8

Which genetic disorder is characterized by the absence of an X chromosome in females?

Hemophilia
Down syndrome
Turner syndrome
Cystic fibrosis
#9

What is the term for the different forms of a gene that can occupy a specific locus?

Phenotype
Genotype
Allele
Mutation
#10

Which of the following is an example of a sex-linked genetic disorder?

Huntington's disease
Color blindness
Cystic fibrosis
Sickle cell anemia
#11

In a dihybrid cross, how many different combinations of alleles can be produced for two genes located on different chromosomes?

2
4
8
16
#12

In a Punnett square, what represents the possible genetic combinations resulting from a cross between two individuals?

Phenotypes
Genotypes
Traits
Mutations
#13

What is the term for the observable characteristics or traits of an organism determined by its genetic makeup?

Genotype
Phenotype
Allele
Homozygous
#14

Which scientist is credited with establishing the laws of inheritance based on pea plant experiments?

Charles Darwin
Gregor Mendel
Watson and Crick
Rosalind Franklin
#15

What is the term for the situation where an individual has two different alleles for a particular gene?

Homozygous
Heterozygous
Dominant
Recessive
#16

What is the term for a trait that is influenced by multiple genes?

Polygenic
Monogenic
Haploid
Dihybrid
#17

In DNA, what does the letter 'C' stand for in the DNA base pairing?

Cytosine
Guanine
Adenine
Thymine

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