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Oxana [17]
2 years ago
12

What are three main functions of stems?

Biology
1 answer:
insens350 [35]2 years ago
6 0
1. Support for and the elevation of leaves, flowers and fruits. 2. Transport of fluids between the roots and the shoots in the xylem and phloem. 3. Storage of nutrients. Hope this helps!!
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Please help i’ll rate you brainliest
alexdok [17]

Answer:

B. Amplitude: 30cm; wavelength: 110cm

6 0
3 years ago
Transcription chain elongation is thought to generate ____ supercoils ahead of the transcription bubble and _____ supercoils beh
frosja888 [35]

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.

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2 years ago
Which parts of the membrane would help a large carbohydrate molecule
nata0808 [166]
C. Globular proteins
4 0
3 years ago
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Most viruses are about _____ times smaler than the average cell.
Viefleur [7K]

Answer:

A) 1000

Most viruses are 1000 times smaller than the average cell

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1 mole of sulfur (s) is equal to home many atoms?
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