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What is/are true of the polymerase chain reaction? a. PCR permits scientists to target a single copy of a single gene among millions of other sequences. b. PCR cannot be used to clone DNA of unknown sequence c. PCR allows scientists to study DNA from samples of finite amounts, such as from fossils, or small tissue samples left at a crime scene. d. PCR allows for the mass production of a specific DNA sequence without cloning. e. all of these
The phylum porifera consists of sponges which are essentially colonies of flagellated cells. Which of the following is a characteristic of the phylum
The thalamus is a brain structure that constantly recieves incoming visual, auditory, olfactory, tactile, thermal, and nociceptive sensory data at any given instant.
A 65 year old man who worked for 30 years in a chemical factory complains of blood in his urine. urien cytology discoles dysplstic cells. A bladder biobsy demostates transtitonal-cell carcinoma. Which of the following carcinogen was most likely in..
Your friend claims to have seen several examples of spiteful behaviors performed by various nonhuman animals. You are quite skeptical of this claim, given your understanding of the evolutionary basis for behaviors.
The endosymbiont theory suggests that mitochondria and chloroplasts evolved from ancient bacteria that were ingested by primitive nucleated cells.
Give examples of potential environmental impact. Give at least two references in addition to your text in support of your position. Be sure to cite your sources including your text using APA style and respond to at least two of your classmates' posti..
You are studying a species of desert-dwelling fish that consists of only 2 populations, each located in a different canyon. Population A is consists of approximately 3000 breeding adults and population B.
Human blood may contain either or both of two antigens, A and B. Blood that contains both antigens A and "B is called AB, and blood that contains neither antigens is called type O.
Create a BIO 113 Labe Report based on a experiment we did on the variances in photosynthtic activity in the Elodea plant.
Describe two important factors that contribute to the buildup of CO2 in the atmosphere and contribute to global warming. Discuss possible ways to control these factors.
How are estuaries different from freshwater and marine ecosystems? Name at least two ways.
Two true breeding plants are crossed; one is true breeding for purple kernels and dwarf stems, and the other is true breeding for white kernels and tall stems. The F1 offspring all have purple kernels and tall stems. Two of these F1 plants are the..
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