In a cross between a true-breeding plant bearing the dominant traits of smooth, yellow seeds and a true-breeding plant
bearing the recessive traits of wrinkled, green seeds, the offspring (F1) are all smooth and yellow and their genotype is
____.
a. SSYY
b. ssyy
c. SsYy
d. ssYY
e. SSyy
ANSWER: c
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The Montreal Protocol banned use of _____ , which contribute(s) to ozone depletion
a. DDT b. CFCs c. fossil fuels d. sulfur dioxides
In his experiments, Mendel noted that when two traits are involved in a genetic cross, they are inherited independently of each other. The reason for this is that
A) genes on the same chromosome separate during the formation of gametes. B) alleles on the same gene separate during the formation of gametes. C) genes on different chromosomes separate during the formation of gametes. D) alleles on the same chromosome separate during the formation of gametes. E) chromosomes often recombine.
The first half of the menstrual cycle is know as the _______ phase.
Fill in the blank(s) with the appropriate word(s).
Which of the following makes ATP in the cell?
A. lysosome B. vacuole C. mitochondria D. peroxisome