Nuclear envelope breakdown occurs at the _______ of _______.
a. beginning; prophas
b. end; prophase
c. end; prometaphase
d. beginning; anaphase
Ans: b. end; prophase
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Which of the following correctly lists the three forms of nitrogenous waste in order from the one that requires the most water to eliminate it to the one that requires the least water to eliminate it?
A. uric acid, urea, ammonia B. uric acid, ammonia, urea C. urea, uric acid, ammonia D. ammonia, uric acid, urea E. ammonia, urea, uric acid
The genes that play a role in the biological clock form part of gene storing structures in the
nucleus known as
a. nucleotides. b. chromosomes. c. tissues. d. proteins
For this problem, you may want to create a Punnett Square on a separate piece of paper. Assume brown eyes are
dominant to blue eyes and dimples are dominant to no dimples. John has brown eyes and his mother has blue eyes. John does not have dimples. Zena has blue eyes and also has no dimples. What are the chances if this couple have children, they will produce a child with blue eyes and no dimples?
a. 0 b. ¼ c. ½ d. ¾ e. There is not enough information provided to solve this problem.
Which epithelial cell is modified for diffusion?
a. cuboidal b. simple squamous c. simple columnar d. stratified squamous e. stratified columnar