In africa, dragon color is co-dominant. the colors blue and yellow are co-dominant. if you cross a yellow dragon with a blue/yellow dragon. what would be the phenotype ratio of their offspring ? i don't understand the co-dominant punnet squares, so explain it so that i can do them on my own in the future : ) you! a- 1 blue and yellow: 1 yellow b- 1 green: 1 yellow c- 1 blue: 2 blue and yellow: 1 yellow d- 3 blue: 1 yellow

The answer is; A

Let us assign the allele for Blue dragon color as B and that of Yellow dragon color as Y and create the punnet square below;

The phenotypic ratio will, therefore, be;

1 Yellow/Blue : 1 Yellow

Option A

Explanation:

In co-dominance,  two different traits associate with each other to produce an intermediate trait combining the characteristic of the two individual traits.

For example -

If red color flower is crossed with white color flower, then its co-dominated offspring would be oink in color.

Here -

Genotype of  yellow dragon is YY

Genoype of yellow/Blue dragon is YB

YY * YB

YY, YB, YY, YB

Out of four off spring 2 are yellow and 2 are yellow/blue

So the ration of yellow and yellow/blue offspring are

2: 2

1: 1

Hence, option A is correct

explanation:

b,bacteria convert nitrates

into nitrogen gas.

d,plants and animals take in

and use nitrogen compounds.

e,bacteria break down waste    

products and return nitrogen  

to the soil.

a,bacteria convert atmospheric

nitrogen to ammonia.

c,bacteria convert ammonia

to nitrites and nitrates.