Which of the following hormones does NOT promote growth of cells or tissues?
a. ADH
b. growth hormone
c. insulin-like growth factors
d. thyroid hormones
e. prolactin
A
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Which of the following is not a function of the IgG antibodies? a. Bind to pathogens
b. Attack invading bacteria through phagocytosis. c. Activates compliments. d. Neutralize toxins. e. Protection of the fetus.
Prior to the work of Lyell and Darwin, the prevailing belief was that Earth is _____
A) a few thousand years old, and populations are unchanging B) a few thousand years old, and populations gradually change C) millions of years old, and populations rapidly change D) millions of years old, and populations are unchanging
A change of information from normal hemoglobin to sickle hemoglobin is a
A. gross mutation. B. structural mutation. C. point mutation. D. natural result of your skin color.
Which strains' mutations represent a complementation group?
Fruit flies normally have red eyes. Seven different true-breeding strains of fly with white eyes have been identified (A-H). In each strain, the white eye trait is due to an autosomal recessive allele. It is possible that all seven strains have mutations in the same gene. Alternatively, some or all of the strains may have mutations in different genes. To determine how many genes are involved in eye color in these flies, all possible pairwise crosses are performed. The offspring phenotypes resulting from each cross are observed. (+ = wild-type; ? = mutant)
A) C, D, F
B) A, B
C) E
D) A, B, E, G, H