Which statement about genetics is true?
A) Genes are proteins that produce DNA.
B) DNA is made up of six different kinds of nucleotides.
C) Differences among organisms reflect different nucleotide sequences in their DNA.
D) Each DNA molecule is a single strand of nucleotides.
Answer: C
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Severe pain in the lower right abdomen along with fever and nausea is often a sign of an infection in this structure.
A) Large intestine B) Stomach C) Esophageal cancer D) Appendix E) Mouth F) Salivary glands G) Rectum H) Cirrhosis I) Gallbladder J) Small intestine
The shifting of membrane fluidity from a gel-like to a more liquid state is known as ________.
Fill in the blank(s) with the appropriate word(s).
The functional group shown above is ____
a. a carbonyl group b. a hydroxyl group c. a phosphate group d. an amino group e. a carboxyl group
Melatonin secretion influences ____
a. secondary sex characteristics b. glucagon production c. adrenal function d. seasonal affective disorder e. Graves’ disease