Heritability and Punnett Squares

Alleles are always found in pairs

• True
• False

What is a phenotype

• 2 alleles
• Genetic code represented by letter
• Measurement of productivity due to genetics
• Observable physical characterisitcs

A method of calculating the chances of inheriting a specific trait is...

• Punnet Square
• Heritability Factor
• Quantitative
• Commercial 

What is the genotypic ratio here

• TT = 25% Tt= 50% tt=25%
• all tall
• TT= 75% tt = 25%
• Tt = 100%

T - tall and t = short
In the punnett square below, what belongs in the missing square

• tt
• Tt
• Bb
• TT

If B = brown hair and b = blonde hair, what is the probability of brown hair?

• 25%
• 50%
• 0%
• 75%

"T" is dominant, "t" is recessive. If an organism has the genes "Tt",

which phenotype, or trait, will result?

• "T" dominant

• "t" recessive

"G" is dominant, "g" is recessive. If an organism has the genes "gg."

Which will trait will result?

• "G" dominant

• "g" recessive

Which term correctly describes an individual with a pair of the same alleles for a trait? 

• homologous

• heterozygous

• homozygous

• heterologous

 An individual with two different alleles for a specific trait is said to be _____________.

• homozygous
• heterogenous
• homogenous
• heterozygous