If a trait is controlled by two codominant alleles of one gene, what phenotypic ratio is expected in the offspring of a mating of two heterozygotes?
A) 2:1
B) 3:1
C) 1:2:1
D) 1:1
E) 4:1
C) 1:2:1
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A unique feature of ________ is that they are tissue specific.
Fill in the blank(s) with the appropriate word(s).
Which of the following would have the most surface area assuming the same volume?
A) a golf ball B) a perfect sphere C) a cube D) a tube
Theoretically, P. bursaria can obtain zoochlorella either vertically (via the asexual reproduction of its mother cell) or horizontally (by ingesting free-living Chlorella from its habitat)
Consider a P. bursaria cell containing zoochlorellae but whose habitat lacks free-living Chlorella. If this cell subsequently undergoes many generations of asexual reproduction, if all of its daughter cells contain roughly the same number of zoochlorellae as it had originally contained, and if the zoochlorellae are all haploid and identical in appearance, then what is true? The zoochlorellae _____. A) also reproduced asexually, at an increasing rate over time B) also reproduced asexually, at a decreasing rate over time C) also reproduced asexually, at a fairly constant rate over time D) reproduced sexually, undergoing heteromorphic alternation of generations
What’s subsistence farming?