Punnett Square Review

The genotypic ratio here is

• 25% blue eye 75 % brown eye 
• BB = 25% Bb = 50% bb = 25%
• BB= 50 % bb = 50%
• All brown eye

The dominant trait is

• yellow pea seeds
• green pea seeds
• there is no dominant seed
• Jolly green giant

To be a yellow seed genotype must be

• aa
• Aa
• AA
• AA or Aa

A Punnet Square will 

• tell you exactly what your offspring will look like
• increase the chance you pass on recessive traits
• predict genotypes and phenotypes in offspring
• have no purpose but for Taylor to give us extra assignments

What is the genotypic ratio here

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

Heredity is the passing of traits from _____________________ to _____________________

• predators to prey
• water to rain
• parents to offspring
• fungi to protists

___________________________ is the study of how traits are passed on, or inherited.

• dominant traits
• ratio
• phenotype
• genetics

Why did Mendel choose to study pea plants in order to learn how traits are passed from parent to offspring?

• Pea plants grow quickly
• Pea plants are ultraviolet
• Pea plants are rare and expensive
• Pea plants are take years to grow

One trait that is ALWAYS present and causes the other traits to disappear is a ________________________

• recessive trait
• aggressive trait
• absent trait
• dominant trait

True or False:  Recessive traits are ALWAYS present 

• True
• False