QuestenaPráctica que te muestra qué repasar después
Pregunta 74

Which pair of sex chromosomes does a human female have in her body cells?

  1. One X and one Y chromosome
  2. Two X chromosomesRespuesta correcta
  3. Two Y chromosomes
  4. One X chromosome only, without a partner

Explicación

A female has two copies of the X chromosome, so at this pair her two chromosomes match each other as the pairs on the rest of her chromosomes do. The mismatched pair belongs to males, and no Y chromosome is present in a female cell for her to pass on.

Continúa con este test

Empezar la práctica
Pregunta 74: Which pair of sex chromosomes does a human female have in… · Genetics Basics · Questena