Unit 6 Review

A characteristic that an organism can pass on to its offspring through its genes is ___________

• Trait
• Gene
• Allele
• Dominant

An organism’s genetic makeup or allele combination.

• Genotype
• Phenotype
• Beanotype
• Notype

An organism’s physical appearance, or visible traits. 

• Genotype
• Phenotype
• Beanotype
• Notype

What is called when a organism has  two different alleles for a trait. Tt or Rr

• Heterozygous
• Homozygous
• Domozygous
• Thermozygous

What is called when a organism has two identical alleles for a trait. TT or tt. RR or rr

• Heterozygous
• Homozygous
• Domozygous
• Thermozygous

A factor that covers up another factor is _____

• Recessive
• Obsessive
• Dominant
• Combinant

Scientists use capital and small letters to show the _____ of an organism. 

• genotype
• genetic disorder
• phenotype
• genome

In a certain species of plant, the color purple (P) is dominant to the color white (p).
According to the Punnett Square, what is the probability of an offspring being purple?

• 25%
• 0%
• 100%
• 50%

B = brown fur  b = white fur
In the punnett square, what is the probability for white fur? 

• 0%
• 25%
• 50%
• 75%

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

• tt
• Tt
• Bb
• TT