Genetics Quiz for Grade 11

What is the basic unit of heredity in living organisms?

• cell

• protein

• gene

• organism

Who is known as the father of genetics?

• Albert Einstein

• Gregor Mendel

• Charles Darwin

• Isaac Newton

What is the term for a permanent alteration in the DNA sequence that makes up a gene?

• variation

• mutation

• modification

• adjustment

Which genetic disorder is caused by the presence of an extra 21st chromosome?

• Turner syndrome

• Cystic fibrosis

• Klinefelter syndrome

• Down syndrome

What is the inheritance pattern in which both alleles of a gene are fully expressed?

• Codominance

• Complete dominance

• Incomplete dominance

• Polygenic inheritance

What is the process of manipulating an organism's genome using biotechnology?

• Biochemistry

• Botanical manipulation

• Genetic engineering

• Chemical alteration

What is the name of the enzyme used to cut DNA at specific sequences in genetic engineering?

• acceleration enzyme

• expansion enzyme

• restriction enzyme

• inhibition enzyme

Which scientist discovered the laws of inheritance through his work with pea plants?

• Marie Curie

• Gregor Mendel

• Isaac Newton

• Albert Einstein

What is the term for the study of heredity and variation in living organisms?

• Ecology

• Genetics

• Physiology

• Anatomy

In a monohybrid cross between two heterozygous individuals, what is the probability of getting offspring with the homozygous recessive genotype?

• 25%

• 50%

• 75%

• 0%