Population increases may be stopped by reduced resources or by the buildup of ________
Fill in the blank(s) with correct word
wastes
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While other types exist, Type II restriction endonucleases are by far the most commonly used enzymes for genetic engineering
Indicate whether the statement is true or false.
Which one of the following is NOT an activity attributed to the checkpoint regulated by the G1/S cyclin-CDK complex in mammals?
A. Protein complexes involved in DNA replication are activated. B. Radiation damage to DNA activates phosphorylation of a p53 protein, preventing its export from the nucleus. C. Excess p53 in the nucleus increases expression of an inhibitor of CDK activity. D. Radiation damage to DNA results in the inhibition of the G1/S cyclin-CDK complex and blocks progression of the cell cycle to S phase. E. Histone expression is inhibited, allowing replication to proceed.
Tapeworms are most commonly found in persons who
a. eat undercooked rice. b. walk barefoot in a rice field. c. eat undercooked pork. d. are bitten by mosquitoes. e. are bitten by ticks.
The energy needed to raise 1 kilogram of water from 14.5oC 15.5oC under controlled conditions is
A. 1 kilocalorie. B. 1 calorie. C. 1 joule. D. 1 erg. E. 1 gram.