Answer:
a. positive; negative
Explanation:
Transcription is the process of forming an RNA molecule from a DNA template molecule. In this process, the strands of DNA separate and one serves as a template for RNA, while the other is inactive. At the end of the transcript, the tapes that have been split back together again.
The transcription process is divided into three steps: initiation, stretching and termination
During the stretching phase, transcription chain elongation occurs. In this phase the enzyme called RNA polymerase starts to move through the DNA molecule, unwinding its helix and producing an increasingly lengthened RNA molecule. The already transcribed DNA is rewound almost immediately, recomposing its double helix. This process is called the elongation phase.
During this process, it is believed that positive supercoils are generated ahead of the transcription bubble and and the negative supercoils behind it.
Answer:
B
Explanation:
When deforestation takes place, it heats up the atmosphere causing more global warming.
<span>Axial Skeleton; the axial skeleton includes the skull and sine while the appendicular skeleton includes the limbs and the bones with which they attach to the axial skeleton.</span>
Messages are carried from the eyes to the brain by NERVES. These fibers send sensory messages between the body and brain.
The nerves are groups of fibers that receive and send sensory messages between the body and brain.
The cells that form nerves are called neurons, which use electrical and/or chemical (neurotransmitter) signals to transmit sensory information.
The optic nerve is a specialized nerve that transmits different types of visual sensory information (i.e., brightness, color, perception, contrast, etc).
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Answer:
fleas carried the disease and there were fleas on rats and the rats hid in ships going across the oceans and then ran out when the ships arrived to their destined place. the fleas then traveled to household pets such as cats and dogs and because those pets came in contact with humans thats how humans caught it.
Explanation:
