The Casparian strip is associated with:
a. the epidermis
b. vascular tissue
c. cortex
d. root hairs
e. the endodermis
e
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A miRNA’s normal job is to inactivate a tumor suppressor gene. If this miRNA is made in abnormally
high amounts,
a. the cell will become cancerous b. the tumor suppressor gene will be overactive c. the cell will not express the tumor suppressor gene as highly as it should d. the cell will stop growing e. the cell will begin to differentiate
Cats excrete nitrogenous waste as ______ and birds excrete nitrogenous waste as _______
a. ammonia; uric acid b. ammonia; urea c. urea; ammonia d. urea; uric acid e. uric acid; urea
Which item or items are the same as a fertilized egg?
a. II only b. III only c. V only d. II and III e. III and V
If one pair of alleles exhibits simple dominance
while the other pair exhibits incomplete dominance, the F2 phenotype produced from a cross of AA BB with aa bb will produce a __________ ratio. a. 1:1:1:1 b. 9:3:3:1 c. 1:4:6:4:1 d. 1:2:1 e. 3:6:3:1:2:1