Because an individual with an XX genotype is a female, is an individual with an XO (no second sex chromosome) a male?
a. No, because the X always overrides the Y and makes that embryo female.
b. No, because the Y chromosome contains the gene that makes an embryo male.
c. Yes, because if there is only one X, the embryo cannot become female.
d. Yes, because all embryos start off as males.
b. No, because the Y chromosome contains the gene that makes an embryo male.
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What is another term for latitude?
a. Parallels b. Dividers c. Longitude d. Meridians
The goal of eugenics is to
a. selectively engineer and change normal human traits into what some perceive to be more desirable characteristics. b. eliminate genetic disorders. c. produce genetically identical humans. d. eliminate genes for abnormal behavior. e. accomplish all of these
In a chloroplast, the stroma is
A) a pore in the outer membrane. B) a stack of thylakoids. C) the region between in the inner and outer membranes. D) a connection between the grana. E) a gel-like matrix between the inner chloroplast membrane and the thylakoid membrane.