Which structure produces an alkaline fluid that helps maintain sperm motility and counteracts the acidity of the female reproductive tract?
A. epididymis
B. seminal vesicle
C. testis
D. vas deferens
E. prostate gland
E
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Why are human males much more likely than human females to inherit the recessive condition hemophilia (a failure of the blood to clot properly)?
A. the gene for hemophilia is carried on the Y chromosome B. the hemophilia gene is carried on an autosome C. the gene for hemophilia is sex-linked D. hemophilia is the wild type
Regarding the human sex chromosomes, which statement is correct?
A) X and Y are different in size but carry nearly equal numbers of genes. B) The X chromosome carries only gender-related genes. C) The X chromosome carries more genes than does the Y chromosome. D) The Y chromosome carries a greater number of genes than does the X chromosome. E) The X chromosome carries the genes for the development of male phenotype.