Genes & Heredity Review

Traits controlled by your genes and passed down from your parents are called _____.

Small segments of DNA that carry the instructions for the traits organisms have is called ______.

Traits that are learned are called _____

(use the word traits in your answer)

Two of the same gene is called _____.

Two different genes is called _____.

Passing of traits from parent to offspring is refered to as ____.

Humans have ___ pairs of chromosomes

If an individual has the genotype Bb, they are _____.

• heterozygous

• homozygous dominant

• heterozygous recessive

• homozygous recessive

An organism’s genetic makeup (alleles) is known as its_______.

An organism’s physical appearance is known as its_____.