Question

Refer to the given figures and select the incorrect statement regarding them.

• A. Z is an organ that receives the sperm which fertilises ovum in X.
• B. Both P and W secrete hormones that control development of secondary sexual characters in male and female respectively.
• C. R is an erectile organ that releases its contents into Z which also serves as birth canal during parturition.
• D. Secretions of both Q and Y help in development of male and female gametes respectively.

Answer 1

The correct option is D Secretions of both Q and Y help in development of male and female gametes respectively.

• Vagina (Z) receives the sperm which fertilises the ovum in the fallopian tubes.
• Y is cervix while X is the fallopian tube where fertilisation takes place.
• Ovaries (W) in females secrete estrogen and progesterone while testis (P) in males secrete testosterone that control the development of secondary sexual characters in females and males respectively.
• Vas deferens (Q) is a long, muscular tube that transports mature sperms to the urethra.
• Penis (R) is an erectile organ that releases its content into vagina which also serves as a birth canal during parturition.