Before Mendel began his pea plant experiments he wondered if traits in offspring result from blending of parental
traits or it they are inherited as ____________________ units. Fill in the blank(s) with the appropriate word(s).
ANSWER: discrete
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Receptors for ________ hormones are located on the plasma membrane and affect target cells by _________
A. amine; activating protein kinase enzymes B. steroid; activating protein kinase enzymes C. peptide; forming hormone-receptor complexes that activate or inhibit gene expression D. steroid; forming hormone-receptor complexes that activate or inhibit gene expression E. amine; forming hormone-receptor complexes that activate or inhibit gene expression
Which of the following diseases is caused by a prion?
A) polio B) Zellweger syndrome C) Tay-Sachs disease D) infantile Refsum disease E) mad cow disease
Which area of the cerebral cortex is important for the formulation of thoughts into speech?
A. Broca's area B. the pons C. the medulla oblongata D. Wernicke's area E. the cerebellum
At birth, the baby passes from the uterus to the outside of the mother's body through the ____
a. oviduct b. urethra c. ovary d. vagina e. vulva