Histones are the ____
a. major class of proteins in chromatin
b. initiators of DNA replication
c. cause of SARS
d. genes that encode for deoxyribose
e. molecules that prevent strong hydrogen bonding
a
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Fifteen high school students visited a local farm in central Wisconsin for a weekend where they enjoyed petting farm animals, riding horses, and campfire meals
With sanitation in mind, only one individual remembered to wash her hands with water pumped from a well after petting the animals before dinner. After two weeks of the girl passing out at random occasions, she was rushed into the emergency room where doctors determined she was severely dehydrated. Explain how it took direct observation of a fecal sample to solve this potential life-threatening disease and how this disease was treated in the otherwise healthy girl. Also mention any necessary precautions the individual should have taken after being diagnosed with the disease. What will be an ideal response?
Competitive exclusion is a result of:
a. interspecific competition. b. intraspecific competition. c. character displacement. d. succession. e. community complexity.
Why are mitochondria present in the sperm?
a. to provide energy for the movement of the flagellum b. to provide energy for the acrosome to penetrate the egg c. to provide nutrients for the sperm d. to provide nutrients for the developing embryo e. to provide energy for the maturation of the sperm
Which of these hormones stimulates the production of milk?
A) Oxytocin B) Prolactin C) Estrogen D) Progesterone E) Colostrum