Complex inheritance

In a certain species of animal, black fur (B) is dominant over tan fur (b).  
Which type of dominance does this cross show?

• Complete Dominance
• Incomplete Dominance
• Codominance
• Polygenic Inheritance

What type of inheritance do two alleles have if their traits blend together? 

• Incomplete Dominance
• Co-Dominance
• Mendelian Inheritance
• Homozygous Inheritance

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

This type of inheritance pattern shows BOTH traits in possible offspring.

• complete dominance
• incomplete dominance
• co-dominance
• dominant pattern

This type of inheritance pattern is a MIXTURE of both traits.

• incomplete dominance
• co-dominance
• complete dominance
• recessive pattern

Snap dragon color is a incomplete dominant trait.  A red flower (RR) is crossed with white flower (rr)? What color are flowers that are Rr?

• Red
• Red and White
• White
• Pink

Tags

NGSS.HS-LS3-2

How many PAIRS of sex chromosomes do humans have?

• 23
• 46
• 1
• 2

The range of human skin colors is caused by a variety of genes, each of which has at least 2 alleles.  This is an example of:

• incomplete dominance
• codominance
• multiple alleles
• polygenic inheritance

Tags

NGSS.HS-LS3-3

X-linked conditions are more common in men than in women because

• The genes associated with the  X linked conditions are linked to the X chromosome, which determines maleness.
• Men need to inherit only one copy of the recessive allele for the condition to be fully expressed
• Women simply do not develop the disease regardless of their genetic composition
• The sex chromosomes are more active in men than in women

Which sex chromosomes would indicate a typical human male?

• XX
• X
• XY
• XXY