In humans, the gene for blood type has ____________________ (number) alleles and the A and B alleles are
____________________. Fill in the blank(s) with the appropriate word(s).
ANSWER: three; codominant
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The ________________ can differentiate into stems, leaves, or flowers.
A. suspensor B. shoot meristem C. basal region D. central region E. root meristem
If a man and his wife are both homozygous for a disease-causing recessive gene, then
____________________ of their children will be affected. Fill in the blank(s) with the appropriate word(s).
Arrange the following events in the correct sequence
1) thyroid gland secretes less hormone 2) homeostasis 3) high concentration of thyroid hormones 4) anterior pituitary secretes less TSH a. 2 ? 1 ? 4 ? 3 b. 2 ? 3 ? 4 ? 1 c. 3 ? 4 ? 1 ? 2 d. 4 ? 3 ? 1 ? 2 e. 1 ? 4 ? 3 ? 2
Urine moves from the renal pelvis to the ________ next
A) ureter B) urethra C) uterus D) nephron