In humans, ability to roll the tongue (R) is dominant to being unable to roll (r). Having freckles (F) is dominant to having no freckles (f). A man heterozygous for both traits marries a woman heterozygous for both traits
What is the probability that they will have a child with freckles?
A. 9/16
B. 3/16
C. 1/16
D. 3/4
E. 1/4
D
Biology & Microbiology
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Chapter 27
13. The letter "A" in the above figure represents a. sclerenchyma fibers. b. parenchyma. c. xylem. d. epidermis. e. phloem.
Biology & Microbiology
Excitatory synapses cause depolarization of the post-synaptic cell.
a. true b. false
Biology & Microbiology
Which process occurs during labor?
A) positive feedback involving oxytocin and prostaglandins B) negative feedback involving oxytocin and prostaglandins C) positive feedback involving estrogen and human chorionic gonadotropin D) negative feedback involving estrogen and human chorionic gonadotropin
Biology & Microbiology
Plasmogamy, karyogamy, and meiosis are stages of the fungal sexual life cycle
Indicate whether the statement is true or false
Biology & Microbiology