A lysogenic cell contains viral DNA, a prophage, integrated into the host chromosome
Indicate whether this statement is true or false.
TRUE
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You are genetic counselor, and a couple comes to you with concerns that if they have a child together
it could have cystic fibrosis. Genetic tests reveal that the woman is a carrier for cystic fibrosis but the man is not. Which of the following would be a correct thing to tell them?
a. Any child that they produce has a 50% chance of having cystic fibrosis, and the rest will be carriers. b. All of their offspring will have cystic fibrosis. c. They should not have any concerns, as no child that they produce should wind up with cystic fibrosis. d. No child that they produce should wind up with cystic fibrosis, but each of their offspring will have a 50% chance of being a carrier. e. Any child that they produce will have a 25% chance of having cystic fibrosis.
DNA fragments can be separated by size on a gel, but then must be transferred to filters for probing
and further analysis. The technique used to transfer DNA to the filters is called ____________________. Fill in the blank(s) with the appropriate word(s).
A wolf that feeds on moose and elk would be classified within which trophic level?
A. Secondary carnivore B. Primary producer C. Primary carnivore D. Decomposer E. Detritivore
A primer of ________ is needed at the origin of nucleotide addition.
A. helicase B. DNA C. RNA D. polymerase I E. polymerase III