The ends of chromosomes are called ________.
A. telomeres
B. centromeres
C. caps
D. DNA termini
A. telomeres
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Stromatolites are fossils of ancient, photosynthetic cyanobacteria
Indicate whether the statement is true or false.
A chicken somatic cell carries 78 chromosomes. A chicken sperm cell will contain how many chromosomes?
a. 19 b. 39 c. 78 d. 156 e. 312
Matching. Choose the one most appropriate answer
for each. 1. ___ compartmentalization 2. ___ effector 3. ___ habitat 4. ___ interstitial fluid 5. ___ apoptosis 6. ___ plasma 7. ___ stimulus 8. ___ tissue A. form of energy that a receptor can detect B. where an organism lives C. muscles and glands are examples D. plant response to attack E. fluid that bathes all cells F. fluid portion of the blood G. programmed cell death H. groups of cells with a common function
Genetically engineering bacteria may be used to break down pollutants in the environment in a process
known as a. bioremediation. b. replica plating. c. hybridization. d. transcription. e. polymorphism.