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Maurinko [17]
3 years ago
11

3. Which of the following statements is not part of modern cell theory? A. All living things are made up of multiple cells. B. A

ll living organisms are made up of cells. C. Cells are the basic building blocks of life. D. All cells come from pre-existing cells.​
Biology
1 answer:
Vesna [10]3 years ago
3 0

Answer:

A. All living things are made of multiple cells.

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The ribosomes make the proteins in a cell.
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Is the binding of a transcription factor to its dna recognition sequence necessary and sufficient for an initiation of transcrip
hram777 [196]

Transcription factors are necessary for an initiation of transcription at a regulated gene but not sufficient.

Transcription is the first step of gene expression in which DNA molecule is copied (transcribed) into RNA (mRNA) by RNA polymerase. The process of transcription is divided into three phases:

1. Initiation

• RNA polymerase with transcriptional factors bind to gene promoter Transcription factors can enhance the interaction between RNA polymerase and a DNA sequence- promoter, encouraging the expression of the gene. Such transcription factors are called activators. Otherwise, when the gene expression is inhibited, factors are called repressors and they bind to sequence –operator.

• RNA polymerase unwinds DNA double helix (transcription bubble is formed)

2. Elongation

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3. Termination

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6 0
3 years ago
Select the correct answer.
GrogVix [38]

Answer:

D.  A mutation causing uncontrolled cell division

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Cell division is controlled by various mechanisms. Any mutations in the genes regulating the cell division lead to uncontrolled cell division. Loss of control over the process of cell division leads to the formation of tumors.  

These tumors may cause cancer if they are transformed into malignant tumors. Hence, a mutation that causes loss of control over cell division is harmful.  

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Why did Earth and Venus evolve so differently? Why is Earth's atmosphere rich in oxygen and poor in carbon dioxide, whereas the
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The earth will have lack  of oxygen and the earth's temperature will increase in heat rapidly.
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Which theory is currently accepted as explaining the Moon's creation?
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Explanation:

The giant-impact hypothesis is currently the favored scientific hypothesis for the formation of the Moon. Supporting evidence includes: Earth's spin and the Moon's orbit have similar orientations. Moon samples indicate that the Moon's surface was once molten.

5 0
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