Which of the following will increase the loading of oxygen onto the hemoglobin molecule within the lungs?
A) decreased pH
B) decreased hydrogen ion concentration
C) increasedPCO2
D) increased 2,3-bisphosphoglycerate (2,3-BPG)
E) increased body temperature
Answer: B) decreased hydrogen ion concentration
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In placental mammals such as humans the dosage compensation mechanism to essentially equalize
expression of sex-linked genes in males and females is
a. doubling the gene expression for most genes on the X chromosome in males. b. doubling the number of X chromosomes in males early in embryonic development in all cells except for precursors of sex cells. c. having all major genes on the X chromosome also present on the Y chromosome. d. halving the gene expression for most genes on each X chromosome in females. e. inactivation of one of the two X chromosomes in most body cells of females.
What are amino acids?
a. subunits of lipids b. subunits of carbohydrates c. subunits of proteins d. subunits of nucleic acids
Just deep to periosteum, but superficial to endosteum, these layers of lamellae extend around entire surface of diaphysis. Help long bone to resist twisting.
What will be an ideal response?
Why do eukaryotic chromosomes have multiple origins of replication? Design an experiment that allows you to test your hypothesis
What will be an ideal response?