Heredity

The different forms of a gene

• heredity
• genetics
• gene
• alleles

This trait always shows up in an organism when the allele is present

• dominant allele
• codominance
• probability
• recessive allele

This trait is hidden whenever the dominant allele is present

• dominant allele
• codominance
• recessive allele
• Punnett Square

A chart that shows all the possible combinations of alleles that can result from a genetic cross

• dominant allele
• codominance
• probability
• Punnett Square

An organism's physical appearance or visible traits

• fertilization
• genotype
• phenotype
• homozygous

An organism's genetic makeup, or allele combination

• fertilization
• genotype
• phenotype
• heterozygous

Mr. Robinson's hairline is straight, and Mrs. Robinson has a widow's peak. Which sentence best explains why their son has a straight hairline?

• He brushes his hair the same way his father brushes his hair.
• He cuts his hair the same way his mother cuts her hair.
• He inherited his hairline from his parents.
• His hairline straightened as he grew older.

Genes are unable to determine a person's

• eye color
• athletic ability
• shape of ears
• type of chin

The pictures below show two dogs. The instructions determining the color of their fur are found in their cell...

• cytoplasm
• membrane
• mitochondria
• chromosomes

When the doctor operates on the patient's eye, he is using

• learned behavior.

• acquired physical trait.

• inherited physical trait.

• instinct.