You prepare a human karyotype. Upon analysis, you find 22 pairs of chromosomes that are each of approximately equal length and also a single pair that has one chromosome longer than the other. What can you conclude from this information?
A) The organism that this cell came from is likely a female.
B) The organism that this cell came from is likely a male.
C) The organism that this cell came from has a genetic disease.
D) This cell is likely haploid.
Answer: B
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The plant hormone ____ has been shown to both promote pollen tube elongation and inhibit root elongation
a. jasmonate b. ethylene c. brassinosteroid d. salicylic acid e. oligosaccharin
The calyx is composed of ____
a. petals b. sepals c. stigmas d. ovules e. anthers
Short, hairlike projections from the plasma membrane, occurring usually in larger numbers.
What will be an ideal response?
The ID50 is
A) a measure of pathogenicity. B) the dose that will cause an infection in 50 percent of the test population. C) the dose that will kill some of the test population. D) the dose that will cause an infection in some of the test population. E) the dose that will kill 50 percent of the test population.