Genetics Review

Front

Who is known as the Father of Genetics?

Back

Gregor Mendel is known as the Father of Genetics for his foundational work in understanding heredity.

Front

What is the term for the physical expression of a trait?

Back

Phenotype is the term for the physical expression of a trait.

Front

What are the different variations of a gene called?

Back

Alleles are the different variations of a gene.

Front

What does it mean if an offspring has the recessive form of a trait?

Back

It means that one parent has 2 recessive alleles and the other parent has 1 dominant and 1 recessive allele.

Front

What is the genetic makeup of an organism called?

Back

Genotype is the genetic makeup of an organism.

Front

What is a mutation?

Back

A mutation is a change in the DNA sequence that can lead to different traits.

Front

What is the difference between dominant and recessive alleles?

Back

Dominant alleles express their traits even if only one copy is present, while recessive alleles require two copies to express their traits.

Front

What is a genetic disorder?

Back

A genetic disorder is a disease caused by abnormalities in an individual's DNA.

Front

What is the role of chromosomes in genetics?

Back

Chromosomes carry genes, which are the units of heredity.

Front

How many chromosomes do humans have?

Back

Humans have 46 chromosomes, arranged in 23 pairs.