An achondroplastic male dwarf with normal vision marries a color-blind woman of normal height. The man's father was six-feet tall, and both the woman's parents were of average height. Achondroplastic dwarfism is autosomal dominant, and red-green color blindness is X-linked recessive. How many of their daughters might be expected to be color-blind dwarfs?
A) all
B) none
C) half
D) one out of four
E) three out of four
Ans: B) none
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What will be an ideal response?
According to the theory of endosymbiosis, which organelles evolved from small prokaryotes that established residence within other, larger prokaryotes?
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This microbe causes syphilis
a) Chikungunya b) Chlamydia trachomatis c) Treponema pallidum d) None of the above
Fungal cell walls typically consist of
a. cellulose. b. chitin. c. lignin. d. peptidoglycan.