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Nata [24]
2 years ago
15

If you cross Bb with bb what's is the genotype ratio?

Biology
2 answers:
insens350 [35]2 years ago
4 0

Answer:

Genotype ratio 1:1, there are two types of genotype BB and Bb in equal ratio.

Phenotype ratio 1:0, because all offspring have allele B. “B” is dominant and there is no bb genotype, so recessive trait will not be shown.

Explanation:

Luba_88 [7]2 years ago
4 0

Answer:

I don't know about the ration but it's going to be 25% chance for them to have an offspring with blue eyes as there is a presence of a dominant allele

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Answer:

A. VG = 80

B. Broad sense heritability = 0.80

C. Narrow sense heritability = 0.30

D. Average yield = 430 Units

Explanation:

A. Given that

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VD = 50

VI = assumed not available

Therefore

Total genetic variance (VG) = VA + VD

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VG = 80

B. Given that

VP = 100

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Broad sense heritability, H2 = VG/VP

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C. Given that

VA = 30

VP = 100

Narrow sense heritability, h2 = VA/VP

=30/100

= 0.30

D. The difference in selection = 500 - 400

= 100

Recall,

Selection response is heritability multiplied by selection differential.

That is

R = h2S

Selection differential = 100

Heritability h2 = 0.30

Selection response = 0.30 × 100

= 30units

Therefore, expected average yield = 400 + 30

= 430 Units

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