The sequence of bases in DNA is transcribed to RNA and then decoded into a sequence of amino acids specified by that code. The sequence of amino acids is specific to the protein encoded by the gene. Proteins have the ability to fold into specific shapes that determine their function because of:
A. the dynamics of cytoplasmic streaming in the cellB. intelligent design providing a purpose for every proteinC. the presence of actin fibers in muscle tissuesD. the sequence of amino acids specified by the geneE. the process of transcription of mRNA in the nucleus.

Name the following: (a) category of pathogen that causes diseases, like common cold and mumps. (b) the microorganism that requires a host to produce.

Which of the following describes a negative feedback loop? when the heart rate is too high, the body sends hormones that continually increase the heart rate higher. when a pregnant woman is in labor, the body sends hormones that increase the intensity of contractions, which then increases the secretion of the same hormones. when blood sugar is too low, the body sends hormones that raise blood sugar until it reaches a typical level and hormone secretion slows. when a person is jogging, the body sends hormones that continually decrease the rate of oxygen supply to the legs.

Which of the following is an effect of the uneven heating of the earth by the sun? a sea breeze a land breeze a convection current all of the above