Translation begins when the DNA in a chromosome unwinds and one strand is used as a template to make a pre-mRNA
molecule.
a. True
b. False
False
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Which of the following represents Echinoderm sexual reproductive strategy?
a. budding b. binary fission c. dioecious with external fertilization d. monoecious with internal fertilization
Hair and nails are keratin-rich structures formed by _____ tissue
a. muscle c. epithelial b. nervous d. connective
Which of the following is the most recent example of an evolutionary change in populations?
A. the genetic differences among the various human populations on Earth B. the occurrence of many different breeds of dogs C. the presence of long generation times in organisms D. the evolution of pesticide-resistant insects
During the second stage of labor:a
the cervix begins to dilate. b. the cervix becomes effaced. c. the fetus is "delivered." d. the uterus begins to contract. e. the amnion breaks.