Which of the following is not true of X-inactivation?
A) It is necessary for dosage compensation.
B) It is the cause of calico color in cats.
C) The mechanism includes transcription of the XIST gene and chromatin remodeling.
D) The XIST RNA is non-coding.
E) The master regulatory gene for X-inactivation is sxl or sex-lethal.
E
You might also like to view...
Reabsorption is the movement of water and solutes from the ____ to the ____
a. interstitial fluid; tubules b. glomerular capillaries; Bowman's capsule c. Bowman's capsule; nephron tubules d. nephron tubules; capillaries e. glomerular capillaries; peritubular capillaries
The ABO blood types have ____ different genotypes
a. 4 b. 6 c. 8 d. 12 e. 16
triggers for binge-eating disorder
What will be an ideal response?
Which of the following factors can lead to diabetes insipidus?
A. Abnormally low level of ADH secretion from the hypothalamus which results in low levels of ADH in the posterior pituitary, preventing the reabsorption of water in the kidneys. B. Abnormally low level of oxytocin secretion from the hypothalamus which results in low levels of ADH in the posterior pituitary, preventing the reabsorption of water in the kidneys. C. Abnormally high level of ADH secretion from the hypothalamus which results in low levels of ADH in the posterior pituitary, preventing the reabsorption of water in the kidneys. D. Abnormally low level of ADH secretion from the hypothalamus which results in low levels of ADH in the posterior pituitary, increasing the reabsorption of water in the kidneys. E. Abnormally low level of ADH secretion from the hypothalamus which results in high levels of ADH in the posterior pituitary, increasing the reabsorption of water in the kidneys.