What will happen after a gardener cuts off all the developing flowers on a tomato plant, with the exception of 12 of the flowers that have already been pollinated and set fruit?
A) The tomato plant will drop the 12 previously pollinated flowers.
B) The tomato plant will become dormant until next year and then 12 tomatoes will ripen.
C) The 12 tomatoes will develop fully on the plant, but they will be small and not very sweet.
D) The 12 tomatoes will develop, and they will be larger and sweeter than if the other flowers remained.
D
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What is a characteristic of T2 bacteriophage?
A. It does not require a host cell for replication B. The phage attaches to the cell wall of a target eukaryotic cell C. The phages injects its DNA into the host cell D. The new phages are formed outside the host cell
The idea that the same geologic processes, occurring over millions of years, have formed Earth's surface is known as ____.
A. the theory of catastrophism B. plate tectonics C. continental drift D. uniformitarianism E. the theory of relativity
Baby bobcats watched as their mother stalked a rabbit and pounced, catching a meal that was shared by all. The next day, two of the young bobcats were seen stalking a field mouse, which easily escaped from the inexperienced hunters. The young bobcats
were learning how to hunt by the process of A) social learning. B) imprinting. C) habituation. D) associative learning.
Which of the following statements is FALSE concerning sister chromatids?
A. The formation of sister chromatids doubles the amount of DNA in a cell. B. Sister chromatids separate during telophase. C. Sister chromatids are formed during the S phase of the cell cycle. D. Sister chromatids are held together at the centromere by cohesin proteins. E. Sister chromatids consist of two identical copies of a single homologue.