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Sex Determination and Differentiation in Humans

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Sex Determination and Differentiation in Humans

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Questions and Answers

Which chromosome primarily determines biological sex in humans?

Neither X nor Y chromosome

Y chromosome (correct)

X chromosome

Both X and Y chromosomes

What is the primary factor responsible for the formation of male genitalia during development?

Absence of both ovaries and testes

Presence of functional ovaries

Presence of functional testes (correct)

Presence of both ovaries and testes

What is the primary function of the ovaries in human females?

Both production of germ cells and secretion of sex hormones (correct)

Neither production of germ cells nor secretion of sex hormones

Production of germ cells only

Secretion of sex hormones only

Which hormones are responsible for the appearance of adult male or female characteristics during adolescence?

Both gonadotropins and sex hormones Signup and view all the answers

Which of the following statements about sex hormone secretion is correct?

Both androgens and estrogens are secreted in both sexes Signup and view all the answers

What is the primary hormone secreted by the ovaries?

Estrogens Signup and view all the answers

Which hormone is responsible for preparing the uterus for pregnancy?

Progesterone Signup and view all the answers

What is the primary function of inhibin B in the endocrine system?

Inhibiting FSH secretion Signup and view all the answers

Which hormone, when secreted by the ovaries during pregnancy, aids in loosening the pubic symphysis ligaments?

Relaxin Signup and view all the answers

In postpubertal females, what is necessary for menstruation, pregnancy, and other reproductive functions to occur?

Sequential secretion of gonadotropins Signup and view all the answers