Biology, 26.01.2021 08:10, arturo698839
Which of the following are found in both DNA and RNA?
A. ribose, phosphate groups, and adenine
B. deoxyribose, phosphate groups, and guanine
C. phosphate groups, guanine, and cytosine
D. phosphate groups, guanine, and thymine
Answers: 3
Biology, 21.06.2019 15:00, alexisolsennn4680
In familial hypercholesterolemia individuals homozygous for the allele causing the disorder completely lack receptors on liver cells that take up cholesterol from the blood stream. heterozygous have one-half the number of receptors while individuals homozygous for the normal allele are phenotypically normal. this is an example of a. epistasis b. complete dominance c. incomplete dominance d. codominance
Answers: 2
Biology, 22.06.2019 02:00, gabe3636
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.
Answers: 1
Biology, 22.06.2019 02:00, sanakhalid8881
The concept of keystone species is controversial among ecologists because most organisms are highly interdependent. if each of the trophic levels is dependant on all others how can we say one is most important
Answers: 3
Which of the following are found in both DNA and RNA?
A. ribose, phosphate groups, and adenine
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