Apples, oranges, peanuts, and rice grains are produced by
A. bryophytes.
B. lycophytes.
C. angiosperms.
D. charophytes.
E. gymnosperms.
Ans: C. angiosperms.
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Which of the following is a difference between the solenoid and zigzag models for the formation of the 30 nm filament?
A. Most of the evidence to date supports the solenoid model, while the zigzag model is unlikely to occur in cells. B. Linker DNA is at the center of the filament in the zigzag model, and on the outside of the filament in the solenoid model. C. The solenoid model is a one-start helix and the zigzag model is a two-start helix. D. The helical pitch in the solenoid model is higher than the helical pitch in the zigzag model. E. The zigzag model occurs in higher eukaryotes such as humans, while the solenoid model occurs in lower eukaryotes such as yeast.
If several traits are affected by the same allele, the allele is said to be
A. pleiotropic. B. dominant. C. epistatic. D. recessive.
What is the gene conversion bias that has been observed in animals and fungi?
What will be an ideal response?
Hans Christian Gram developed the gram stain.
Indicate whether the statement is true or false.