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4. Girls Have an Xx Chromosome. What Do Boys Have? a BX (B) XY Xx

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4. Girls have an xx chromosome. What do boys have? a BX (B) XY xx

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Patricia veterano · Tutor durante 12 años
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Respuesta

(B) XY

Explicación

## Step 1The problem is about human genetics, specifically the sex chromosomes. In humans, sex is determined by the combination of sex chromosomes that an individual inherits from their parents. ## Step 2Females typically have two X chromosomes, represented as XX. This is the standard genetic makeup for females.## Step 3Males, on the other hand, have one X chromosome and one Y chromosome, represented as XY. This is the standard genetic makeup for males.## Step 4The presence of the Y chromosome determines male sex characteristics. Therefore, the correct answer to the question "What do boys have?" is (B) XY.