Honors Genetics 2022

A plant with red flowers (RR) is crossed with a plant that has white flowers (rr). What percentage of the offspring will have pink flowers?

• 25%

• 50%

• 75%

• 100%

Tags

NGSS.HS-LS3-3

A red flowered plant (RR) breeds with a White flowered plant (WW). The gene for petal color in these plants expresses incomplete dominance.  What percentage of the offspring will have pink (RW) flowers?

• 0%
• 25%
• 50%
• 100%

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

Co-dominance ________________

•  is a situation in which both alleles are equally strong and both alleles are visible in the hybrid genotype
•  is a situation in which the dominant allele is stronger than the recessive allele, but both alleles are visible in the hybrid genotype
•  is a situation in which the recessive alleles are stronger than the dominant allele,  within which the recessive alleles are visible in the hybrid genotype
• none of the answers are correct.

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

One of the co-dominant traits studied in class was blood types. If a person has the allele blood type I B i o, what type of blood type does the individual have?

• The individual would have blood type A
• The individual would have blood type B
• The individual would have blood type AB
• The individual would have blood type O

If you cross two checkered chickens (Bb x Bb), what would be the phenotypic ratio of the offspring?

• All Checkered
• 1 Black : 2 Checkered : 1 White
• 2 Black : 2 White
• 3 Black : 1 White

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

What type of inheritance pattern is shown here?

• Complete Dominance
• Incomplete Dominance
• Co-Dominance
• Sex-linked

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

Cross a roan cow (pictured here Rr) with a white cow (rr), what will be the resulting phenotypic ratio of the offspring?

• All Roan cows
• All White cows
• 50% Roan : 50% White
• 50% Red : %50 White

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

NGSS.HS-LS3-3

What percentage of the offspring will have this recessive disease?

• 0%
• 25%
• 50%
• 75%

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

NGSS.HS-LS3-3

Cross Two Homozygous plants
(RRYY x rryy)
R = round seeds, r  = wrinkled seeds Y = yellow seeds, y = green seeds
What percent will have Round and Yellow seeds? 

• 0%
• 25%
• 50%
• 100%

Tags

NGSS.MS-LS3-2

What proportion of the offspring in Figure 11-4 would be expected to have white, smooth hair?

• 9/16
• 3/16
• 4/16
• 1/16

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

NGSS.HS-LS3-3