Inheritance Grade 8

Front

What is a chromosome?

Back

A chromosome is a long, thread-like structure made of DNA and proteins that contains genetic information.

Front

How many alleles does a person carry for a trait?

Back

A person carries 2 alleles for each trait, one inherited from each parent.

Front

Who is known as the father of genetics?

Back

Gregor Mendel is known as the father of genetics.

Front

What does each box in a Punnett Square represent?

Back

Each box in a Punnett Square represents an offspring.

Front

What is a homozygous allele pair?

Back

A homozygous allele pair consists of two identical alleles for a trait, such as BB or bb.

Front

What is a gene?

Back

A gene is a segment of DNA that contains the instructions for building a specific protein or trait.

Front

What is the difference between dominant and recessive alleles?

Back

A dominant allele is expressed in the phenotype even if only one copy is present, while a recessive allele is only expressed if two copies are present.

Front

What is a genotype?

Back

A genotype is the genetic makeup of an organism, represented by the alleles it possesses.

Front

What is a phenotype?

Back

A phenotype is the observable physical or biochemical characteristics of an organism, determined by its genotype.

Front

What is a Punnett Square used for?

Back

A Punnett Square is used to predict the genetic outcomes of a cross between two organisms.