select the correct answer.

in a particular species of frogs, black spots are a dominant trait and their absence is a recessive trait. in a population of frogs, 50 are homozygous for the dominant trait, 34 are heterozygous dominant, and 16 show the recessive trait. which expression is the correct way to calculate the frequency of the dominant allele?

$\bigcirc \frac{50}{100}$

$\bigcirc \frac{84}{100}$

$\bigcirc \frac{50}{200}$

$\bigcirc \frac{134}{200}$

$\bigcirc \frac{100}{200}$

Question

select the correct answer.

in a particular species of frogs, black spots are a dominant trait and their absence is a recessive trait. in a population of frogs, 50 are homozygous for the dominant trait, 34 are heterozygous dominant, and 16 show the recessive trait. which expression is the correct way to calculate the frequency of the dominant allele?

$\bigcirc \frac{50}{100}$

$\bigcirc \frac{84}{100}$

$\bigcirc \frac{50}{200}$

$\bigcirc \frac{134}{200}$

$\bigcirc \frac{100}{200}$

Accepted Answer

{ "quality": "clear", "question_count": 1, "skills_matched": [ "step_cot", "multiple_choice_formatter", "explain_then_answer", "tutor", "mastery_adaptive_brevity" ], "needs_drawing": false, "concepts_used": [ "Hardy-Weinberg Principle", "Allele Frequencies" ], "new_concepts": [], "current_concepts": [ "Hardy-Weinberg Principle", "Allele Frequencies", "Genotype Frequencies" ] } ## Identificar los datos del problema Using the *Hardy-Weinberg Principle* and *Allele Frequencies* knowledge points $$ \begin{aligned} &\text{Homocigotos dominantes } (AA) = 50\ &\text{Heterocigotos } (Aa) = 34\ &\text{Homocigotos recesivos } (aa) = 16\ &\text{Población total } (N) = 50 + 34 + 16 = 100 \end{aligned} $$ ## Calcular el número total de alelos Using the *Allele Frequencies* knowledge point $$ \begin{aligned} &\text{Total de alelos en la población} = 2 \times N = 2 \times 100 = 200 \end{aligned} $$ ## Contar los alelos dominantes Using the *Allele Frequencies* knowledge point $$ \begin{aligned} &\text{Alelos } A \text{ de homocigotos } (AA) = 2 \times 50 = 100\ &\text{Alelos } A \text{ de heterocigotos } (Aa) = 1 \times 34 = 34\ &\text{Total de alelos dominantes } (A) = 2(50) + 34 = 100 + 34 = 134 \end{aligned} $$ ## Determinar la expresión de la frecuencia Using the *Allele Frequencies* knowledge point $$ \begin{aligned} &p = \frac{\text{Total de alelos } A}{\text{Total de alelos en la población}} = \frac{134}{200} \end{aligned} $$

(A) $\frac{50}{100}$

(B) $\frac{84}{100}$

(C) $\frac{50}{200}$

(D) $\frac{134}{200}$

(E) $\frac{100}{200}$

{ "subject": "Natural Science", "question_type": "Multiple Choice", "knowledge_point": [ "Natural Science", "Biology", "Allele Frequencies" ] }

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QUESTION IMAGE

Question

Explanation:

Identificar los datos del problema

Calcular el número total de alelos

Contar los alelos dominantes

Determinar la expresión de la frecuencia

Answer: