What would happen developmentally if a zygote with XY sex chromosome karyotype had a defective testosterone receptor?
What will be an ideal response?
We learned in this chapter that testosterone is necessary for initiating the male developmental pathway; an XY individual lacking this receptor would develop as a female.
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The structure and function of a protein are determined by its ________ sequence
A) nucleotide B) amino acid C) ribonucleotide D) translocation
The female gametophyte of a flower develops within a(n) ____
a. stigma b. anther c. calyx d. corolla e. ovule
Group 1 aquatic macroinvertebrates
a. require high-quality, unpolluted water. b. require polluted water. c. are tolerant of a wide range of water quality conditions. d. include leeches.
Plants get the nitrogen they need to build additional cells from
A. protein in the cells. B. ammonia or nitrate in the soil. C. denitrifying bacteria. D. directly from the nitrogen in air.