Genetics & DNA Incentives Exit Ticket

B=brown eyes
b= blue eyes
What is true about two brothers that have brown eyes?
One has genotype BB the other Bb.

• they have same phenotype and genotype
• they have different genotypes and phenotypes
• they have same phenotype but different genotypes
• they have same genotype but different phenotypes

Which one is NOT an example of an inherited trait.

• hair color
• skin color
• hair length
• eye color

In a flowering plant species, red flower color (R) is incompletely dominant over white flower color (r). What are the phenotypes of the offspring, if both parents are HETEROZYGOUS?

• 25% Red and 75% white

• 50% red, 50% pink

• 100% red

• 25% white, 50% pink, 25% red

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

If a trait is recessive, it needs to be inherited from ___ parents to be 'expressed'.

• one
• both

Tags

NGSS.HS-LS3-1

If Chargaff found that a sample of DNA has 30% THYMINE, how much GUANINE would he have calculated to be there?

• 30%
• 20%
• 80%
• 60%

Rosalind Franklin's "Photo 51" allowed Watson and Crick to determine the ___ of DNA.

• Shape
• Backbone
• Nitrogen bases
• Hydrogen bonds

The gene for hemophilia is recessive. In the pedigree, fully shaded indicates a person with this disorder. Based on the pedigree, which statements shown below must be correct?

• The father is heterozygous

• This trait is sex linked

• The couple in generation 1 have two boys with the disease

• The great grand child is homozygous recessive

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

Select all that apply: Which of the following are examples of DNA technology?

• Eugenics

• Cell Theory

• Genetic Engineering

• The Human Genome Project

• Microscope enhancements

Tags

NGSS.HS-LS3-2

Which of the following genotypes is heterozygous?

• Bb
• BB
• bb
• B

What ratio of the offspring from the cross shown will be homozygous recessive for the  trait of tallness? 

• 0 in 4
• 1 in 4
• 2 in 4
• 4 in 4

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2