What term is given to the shape of the dna molecule

Which of these is an environmental factor that causes damage to chromosomes? A. ultraviolet light B. acid rain C. methane gas D. lead paint

A registered nurse is teaching a client with dysmenorrhea about how to reduce the menstrual discomfort. which statements made by the client indicate the need for further teaching? select all that apply.

How can the process of meiosis increase genetic cariation?

What 3 currents are formed in the beach?

Under normal conditions, why would you not find trachodon fossils with woolly mammoth fossils?

Salivation is controlled almost entirely by the nervous system. Which of the following stimuli would inhibit salivation? Hint 1. The sympathetic nervous system would be activated in this situation. 1) a lemon 2) nausea 3) the thought of food 4) fear

Which of the following best compares Aristotle's method of classifying organisms to Linnaeus's classification system?

Can twins have their own language

Parasympathetic tone ... Question options: 1) ... holds the resting heart rate below its intrinsic rate. 2) ... affects heart rate only after myocardial infarction ("heart attack"). 3) ... does not affect heart rate. 4) ...

Using an electron microscope, a scientist identified these cell structures in an unknown organism: mitochondrion, nucleus, cell wall, and chloroplast. What kind of organism did the scientist find?