Complex 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) is crossed 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

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

• Incomplete Dominance
• Co-Dominance

This is an example of ___________?

• Incomplete dominance
• Co-Dominance

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

This is an example of ___________.

•  Incomplete Dominance
•  Codominance

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

If you cross a black chicken with a white chicken, only checkered chickens would be produced.  What kind of inheritance pattern does this follow?

• incomplete Dominance
• Co-Dominance

Tags

NGSS.HS-LS3-1

In chickens, feather color is codominant.  If a black chicken BB is mated with one that is black and white (BW) what are the chances of having a chicken that is black and white?

• 50%
• 0%
• 25%
• 100%

Tags

NGSS.HS-LS3-3

In Andalusian fowls, black individuals (BB) and white individuals (bb) are homozygous. Heterozygous individuals are grey (Bb).  
Cross a black fowl with a white fowl. What is the phenotype ratio?

• 4 black: 0 grey: 0 white
• 2 black: 2 grey: 0 white
• 0 black: 4 grey: 0 white
• 0 black: 2 grey: 2 white

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

How are Incomplete Dominance and Co Dominance different than a normal Mendelian cross?

• There is no difference
• The heterozygous genotype has a unique phenotype
• There is no heterozygous genotype
• There is only one phenotype regardless of genotype.

Which chromosome contains more genes?

• The X chromosome

• The Y chromosome

• They are homologous, so they contain the same amount of genes.