Assume that the mutation rate for a given gene is 5 × 10?6 mutations per generation. For that gene, how many mutations would be expected if 10 million sperm are examined?
A) none
B) 5 × 10?6
C) 5
D) 50
E) 500
D) 50
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Chlorophyll a appears green because it absorbs mainly _____ light
a. violet and red c. yellow b. green d. blue
During implantation, the __________ buries itself in the uterine wall
ANSWER: blastocyst Fill in the blank(s) with the appropriate word(s).
Symbiosis is
A) a relationship between organisms of differing species where the interaction requires close proximity and one of the organisms lives in or on the other as they interact. B) any type of relationship where both organisms benefit. C) the relationship you see between honeybees and flowers. D) another identifier for a predator such as a lion, hunting its prey, such as a zebra.
Which organism is NOT correctly matched to its energy source?
A) photoheterotroph - light B) photoautotroph - CO2 C) chemoautotroph - Fe2+ D) chemoheterotroph - glucose E) chemoautotroph-NH3