Genetics and Punnett Squares

Match the following terms to their definitions:

• b, t, or e

• Genotype

• The two alleles or copies of DNA that you inherit from your parents

• Recessive allele

• B, T, or E

• Phenotype

• The physical appearance that is created by genes

• Allele

• The different possible versions of a gene

• Dominant allele

Which of the following can be used to determine the possible phenotypes between two people?

• Pedigree

• PCR analysis

• Punnett Square

• DNA testing

Which of the following is an example of being heterozygous?

• BB

• Bb

Which of the following is an example of a dominant allele?

• Having the gene for red and white coloring, and showing a pink coloring (mix of red and white).

• Having blue eyes when you have two "blue" alleles

• Having the gene for both red and white coloring, and showing spots of each.

• Having brown eyes that appear even if you carry the gene for blue eyes.

Match the following

• bb

• Homozygous Recessive

• BB

• Genotype

• Bb

• Chromosome

• Having blue eyes

• Homozygous dominant

• Condensed DNA

• Phenotype

What type of letters are used to show a trait is dominant?

• capital

• lowercase

An organism's phenotype describes its __________.

• genetic makeup

• physical appearance

Which trait does a puppy inherit from its parents?

• fur color and pattern
• obedience to commands
• food brand preference
• affection for a specific home

Which is an example of a learned characteristic?

• color of a dog's fur
• color blindness of a person
• the ability of a mouse to run a maze
• a person's ability to roll their tongue

Which characteristic would most likely be inherited by a baby?

• brown hair
• crying a lot
• ability to jump high
• his ability to talk