A nucleus within an ascus undergoes meiosis, producing four haploid spores, which then undergo mitosis, producing eight haploid ascospores. These haploid ascospores contain a maximum of _____ different genetic types.
a) one
b) two
c) three
d) four
e) five
Ans: d) four
You might also like to view...
Compared to viewing a distant object, a human viewing an object held within five centimeters of the eye requires a lens that _____
A) has been flattened, as a result of contraction of the ciliary muscles B) has been made more spherical, as a result of contraction of the ciliary muscles C) has been flattened, as a result of relaxation of the ciliary muscles D) has been made more spherical, as a result of relaxation of the ciliary muscles E) does not change its shape
Natural selection operates to produce changes in
a. individuals. b. populations. c. races. d. phyla. e. animals only.
When the reticular activating system sends stimuli to the cerebral cortex, a state of __________
results. a. fatigue b. confusion c. alertness d. anxiety e. sleep
Which essential mineral is provided by a diet rich in whole grains?
A) calcium B) magnesium C) potassium D) beta-carotene