A mutation can be the cause for
A) sperm and egg formation.
B) growth and development.
C) sexual reproduction.
D) environmental change.
E) natural selection.
E
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A friend tells you that her husband has been feeling anxious and stressed for the past month. During this same time interval, he has had several infections, bouts of forgetfulness, and erectile dysfunction. Doctors have already checked for ulcers, cancer, blood pressure changes, and other blood irregularities, but these apparently are normal. You are an endocrinologist, so you suggest that he be
tested for the most likely endocrine malfunction, which would be altered ____ levels in the blood. a. estrogen b. cortisol c. calcitonin d. melatonin e. testosterone
What localization occurs for proteins that are normally nuclear when their nuclear localization signal is deleted and the protein is injected into the cytoplasm of cultured cells?
a. Nucleus b. Cytoplasm c. In a ring around the outside of the nuclear envelope d. Extracellular
The genetic testing procedure associated with in vitro fertilization is ____
a. amniocentesis b. chorionic villus sample c. endoscopy d. preimplantation diagnosis e. sonography
The full complement of DNA found in a cell of your body constitutes your:
A) non-coding sequences. B) genetic code. C) coding sequences. D) genome.