Genetics Test

Different forms of the same gene are called

• recessive
• homozygous
• chromosomes
• alleles

Brown-eyed parents have two brown-eyed children and one blue-eyed child. This can occur because

• environmental factors can change eye color
• the combination alleles is the same in each offspring
• the combination alleles is different in each offspring
• all humans carry an allele for blue eyes
  

Which tool can help us predict the common traits our offspring will inherit?

• Punnett triangle
• periodic table
  
• Punnett square
• Pedigree square

Any change in the genes of an organism is a ________________.

• genetic engineering
• biomedical engineering
• selective breeding
• Mutation

_____ is the passing of traits from parent to offspring.

• Genetics
• Heredity 
• Mitosis
• Dominance

Hair color, hair texture and human blood type are all controlled by

• Multiple alleles
• Codominace
• Dominant allele 
• Polygenic

All mutations involve the altering of the __________ of an organism.

• Nucleus
• DNA
• Diseases
• Proteins

What is the term for the genotype made of 2 alleles that are the same? (Ex: BB or bb)

• Homozygous
• Recesisve 
• Heterozygous
• Dominant

Mutations can cause genetic disorders. Which disease(s) is (are) caused by genetic mutations?

• Hair Color
• Cystic Fibrosis
• Malaria
• All of the above

Which term refers to the allele you see when you look at the physical traits of a person?

• Pedigree
• Geneotype
• Recessive
• Phenotype