In Andalusian fowls (Gallus gallus), black plumage (feathers) (P) is incompletely dominant to white (PW) and the heterozygous condition results in blue plumage. a. What phenotypes, and in what ratios, will result if you breed a blue Andalusian with a
i. black bird
ii. blue bird
ill. white bird
b. Is it possible to produce a flock of blue birds that will produce only blue offspring when mated with each other? Why or why not?

i.  Genotype - PP, PPW, PP, PPW

Phenotype - Blue Andalusian : black bird is 1:1

ii. Genotype - PP, PPW, PPW, PWPW

Phenotype - Black bird : Blue Andalusian : White bird - 1: 2: 1

iii. Genotype - PPW, PPW, PWPW, PWPW

Phenotye

Blue Andalusian : white bird

2: 2

1: 1

Explanation:

Given -

Black plumage (feathers) (P) is incompletely dominant to white (PW)

The heterozygous condition i.e PPW gives blue color to the feather.

i.  Breeding a blue Andalusian with a black bird

Genotype of blue Andalusian - PPW

Genotype of  black bird - PP

PPW * PP

PP, PPW, PP, PPW

Out of 4 two are blue Andalusian and two are black bird

Blue Andalusian : black bird is 1:1

ii. Breeding a blue Andalusian with a blue Andalusian

Genotype of blue Andalusian - PPW

PPW * PPW

PP, PPW, PPW, PWPW

Phenotype

Black bird - PP - 1

Blue Andalusian (PPW) - 2

White bird (PWPW) - 1

Black bird : Blue Andalusian : White bird - 1: 2: 1

iii. Breeding a blue Andalusian with a White bird

Genotype of blue Andalusian - PPW

Genotype of white bird - PWPW

PPW * PWPW

PPW, PPW, PWPW, PWPW

Two are Blue Andalusian and two are white bird

Blue Andalusian : white bird

2: 2

1: 1

hey, i believe your answer would be d. sugar ribose and the base uracil. i believe this is the answer, because rna consists of sugar ribose, adenine, guanine, cytosine, and uracil.

your first option is incorrect, because that's dna. where it consists of sugar deoxyribose, adenine, guanine, cytosine and thymine.

your second option is also incorrect, this is because sugar deoxyribose is in dna, and uracil is in rna. these two do not make sense together.

your third option being incorrect, because sugar ribose is in rna, but not the base of thymine. rna consists of uracil, not thymine.

lastly your fourth option being correct! this answer is correct, because both sugar ribose, and the base uracil are in rna! ~

answer is d. sugar ribose and the base uracil.

answer : haversian

[explanation: -(compact bone is organized as parallel columns, known as haversian systems, which run lengthwise down the axis of long bones. these columns are composed of lamellae, concentric rings of bone, surrounding a central channel, or haversian canal, that contains the nerves, blood vessels, and lymphatic system of the bone)]