Kyle is genetically a male; this means he received a(n) ________.
a. X chromosome from his mother, and a Y chromosome from his father
b. Y chromosome from his mother, and a Y chromosome from his father
c. X chromosome from his mother, and an X chromosome from his father
d. Y chromosome from his mother, and an X chromosome from his father
Question 2
In the presence of the Y sex chromosome, male hormones called ________ are secreted. This causes the fetus to develop testicles, a penis, and male internal sexual anatomy.
a. estradiols
b. HCGs
c. androgens
d. progesterones
Male and female plants
A map of the E. coli genome obtained genetically
Male Reproductive System - Testes
The human X chromosome (left) and the Y chromosome (right). This false-color scanning electron micro
A karyotype shows this child has three copies of chromosome 21.
Gene fusion in the 9;22 translocation. Part of the BCR gene on chromosome 22 is moved to chromosome