Co-Dominance in Chicken Genetics

The video tutorial covers co-dominance in genetics, using chickens as an example. It explains how co-dominance involves both traits being expressed together, unlike traditional dominance. The tutorial uses a Punnett Square to demonstrate how to solve a co-dominance problem, specifically crossing a black and a white chicken to predict the probability of offspring with black and white spotted feathers. The video emphasizes using different letters for alleles in co-dominance scenarios.

What does the prefix 'Co' in co-dominance signify?

• Dominant

• Apart

• Together

• Alone

In the context of co-dominance in chickens, what does the allele 'B' represent?

• Spotted feathers

• No feathers

• Black feathers

• White feathers

What is the phenotype called when a chicken has both black and white spots?

• Albino

• Recessive

• Emirates

• Dominant

Why are different letters used for alleles in co-dominance?

• To follow dominance rules

• To represent different traits

• To simplify calculations

• To avoid confusion

What is the genotype of a black chicken in this co-dominance scenario?

• BB

• WW

• BBWW

• BW

What is the genotype of a white chicken in this co-dominance scenario?

• BB

• BW

• BBWW

• WW

What is the expected phenotype of the offspring when a black chicken is crossed with a white chicken?

• All black

• All white

• Black and white spotted

• Mixed colors

What is the probability of obtaining black and white spotted chickens from the cross?

• 50%

• 100%

• 0%

• 25%

In a Punnett Square for co-dominance, what do the letters 'B' and 'W' represent?

• Dominant and recessive traits

• No traits

• Same trait

• Two different traits

What is the main difference between co-dominance and true dominance in genetics?

• Co-dominance uses the same letters

• True dominance shows both traits

• Co-dominance shows both traits

• True dominance uses different letters