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ohaa [14]
3 years ago
11

Which of the following describes the genotype and phenotype of parents whose child will definitely have a recessive trait? A. Bo

th parents are homozygous for the recessive allele and have the trait. B. Both parents are homozygous for the recessive allele but do not have the trait. C. Both parents are heterozygous for the recessive allele and have the trait. D. Both parents are heterozygous for the recessive allele but do not have the trait.

Chemistry
1 answer:
viva [34]3 years ago
3 0

The answer is; A


When both parents are homozygous recessive, then there is 99.9 percent chances that offspring will bear the recessive trait. The offspring will also be homozygous recessive. This can be demonstrated by the following punnet square (assume dominant allele is assigned letter B while recessive allele b).


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<h3>Further explanation</h3>

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100g of N₂

Required

Ammonia produced

Solution

mol of N₂ :

\tt mol=\dfrac{mass}{MW}\\\\mol=\dfrac{100}{28}\\\\mol=3.57

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mass of NH₃(MW=17 g/mol) :

\tt mass=mol\times MW\\\\mass=7.14\times 17\\\\mass=121.38~g

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3 years ago
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Answer:

8 m/s north

Explanation:

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Answer

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Explanation:

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3 years ago
A sucrose solution is prepared to a final concentration of 0.250 M . Convert this value into terms of g/L, molality, and mass %.
MArishka [77]

Answer:

A. 85.6 g

= 0.0856 kg.

B. 0.00027 mol/g

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C. 8.39 %

Explanation:

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Molar weight of sucrose = 342.296 g/mol

Density of solution = 1.02 g/mL

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Density in g/l = 1.020 g/ml * 1000ml/1 l

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Mass of sucrose = 1020 - 934.4

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A.

Density of sucrose = mass/volume

= molar mass/molar concentration

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= 85.6 g/l

Number of moles = mass/molar mass

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B.

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C.

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Estructura molecular del óxido nitroso​
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Answer:

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Explanation:

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