Hemoglobin is made up of four proteins from two different gene clusters, the ?-globin gene cluster and the ?-globin gene cluster
The two clusters are related, having evolved from a common ancestral gene through gene duplication, based on strong similarities in which three gene characteristics?
sequence, structure, and function
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Four of the five answers listed below concern
cells with two chromosome sets. Select the EXCEPTION.
a. zygote b. somatic cell c. spore d. diploid e. sporophyte
What will happen in a cell if it becomes damaged by radiation or chemicals?
a. It will not pass the G2 checkpoint. b. It will not enter S from G1. c. It will not synthesize cyclin-dependent kinases. d. It will not enter G1 from mitosis.
In what way does caffeine affect the urinary system?
A. Caffeine increases the actions of ADH causing the proximal convoluted tubule to reabsorb less water which leads to an increased amount of urine formation. B. Caffeine blocks the actions of ADH causing the glomerular capsule to reabsorb less water which leads to an increased amount of urine formation. C. Caffeine blocks the actions of ADH causing the distal convoluted tubule and collecting duct to reabsorb urine formation. D. Caffeine increases the actions of ADH causing the distal convoluted tubule to reabsorb less water which leads to an increased amount of urine formation. E. Caffeine blocks the actions of ADH causing the proximal convoluted tubule to reabsorb more water which leads to a decreased amount of urine formation.
The part of the inner ear that helps you to know the position of your head with respect to gravity when you are not moving is called the ________
Fill in the blank(s) with correct word