Bryophytes have ____
a. true leaves
b. two spore types
c. true roots
d. true stems
e. one spore type
ANSWER: e
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How could overlapping genes in a positive ssDNA virus genome be predicted?
A) Convert the positive ssDNA into its complementary ssDNA and search for genes in the negative ssDNA strand for sequences used in more than one predicted gene. B) Directly search the three frames of the positive ssDNA for genes that have sequences where more than one gene is predicted. C) Convert the positive ssDNA into negative ssDNA and search all six possible frames for genes that use part of the same sequence. D) Convert the positive ssDNA into its complementary ssDNA and search for genes in the negative ssDNA strand that also share a complementary gene in the positive strand.
Which one of the following is a monosaccharide and not a disaccharide?
A. lactose B. fructose C. sucrose D. maltose E. None of these sugars is a monosaccharide.
Answer the following statements true (T) or false (F)
1. Arginine vasotocin is found in nonmammalian vertebrates and shares structural and functional properties with antidiuretic hormone and oxytocin. Because of this, it is generally thought that arginine vasotocin was the ancestoral posterior pituitary hormone in vertebrates. 2. Vitamin D is a hormone produced in part by exposure to sunlight. 3. If blood sodium levels rise sharply above normal limits the heart will release more atrial natriuretic peptide. 4. Juvenile hormone is a critical growth regulatory and maturity hormone in people. 5. A growth-hormone releasing hormone tumor in the brain could lead to stunted growth in children.
In the hippurate hydrolysis test, what are some of the end products produced?
A. Sodium hippurate and hippuricase B. Ninhydrin and sodium C. Sodium benzoate and glycine D. Hippuricase and ninhydrin