Genetics and Inheritance Quiz

What is the role of genes and chromosomes in the process of inheriting a specific trait?

• They are responsible for the process of photosynthesis

• They only affect the genotype of an organism

• They determine the physical characteristics of an organism

• They have no role in inheriting traits

What is selective breeding?

• Breeding to produce plants and animals with harmful traits

• Breeding to produce plants and animals with random traits

• Breeding to produce plants and animals with desired traits

• Breeding without any specific traits in mind

How many total chromosomes do humans have?

• 46

• 50

• 20

• 23

What is the term used to describe the physical characteristics that can be observed in an organism?

• Genotype

• Phenotype

• Heterozygous

• Homozygous

What is the term used to describe the actual genes an organism has?

• Genotype

• Homozygous

• Phenotype

• Heterozygous

What is the term used to describe alleles that have the same form of the same gene?

• Homozygous

• Heterozygous

• Dominant

• Recessive

What is a Punnett Square used to illustrate?

• The accidental changes in DNA

• The process of photosynthesis

• The physical characteristics of an organism

• The probability of what could happen concerning a trait when organisms sexually reproduce

What is the process of selecting and breeding parent organisms to pass on particular traits to offspring?

• Random Breeding

• Unplanned Breeding

• Accidental Breeding

• Selective Breeding

What are accidental changes in DNA called?

• Genes

• Alleles

• Chromosomes

• Mutations

What is a pedigree used to trace?

• The process of photosynthesis

• Genetic traits through a family

• The physical characteristics of an organism

• The probability of traits in offspring