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Explain how the DNA of a Eukaryote is replicated

To replicate the DNA of a eukaryotic cell, the double helix structure must first be unwound to present the base pair sequence. This is done using DNA helicase (this enzyme breaks the hydrogen bonds connectio...
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Answered by Oscar W. • Biology tutor
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Highlight 3 differences between mRNA and DNA molecules

mRNA is only single stranded, whereas DNA is a double stranded molecule 2. mRNA has Uracil instead of thymine which is found in DNA 3. mRNA contains no introns as they have been spliced out, however DNA cont...
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Answered by Safia A. • Biology tutor
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Why do humans have a double circulatory system?

Ask the student: what other option is there? What are the differences between the two? Answer: Humans have a small surface area to volume ratio, so diffusion alone is not enough to meet the high metabolic de...
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Answered by Divya V. • Biology tutor
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How do I explain the process of Natural Selection?

VOSSAG V - Variation: all organisms undergo varying amounts of genetic variation due to genetic mutations or environmental factors (such as geographic separation). O - Overpopulation: all populations have th...
BK
Answered by Ben K. • Biology tutor
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How do the components of a plasma membrane affect the movement of substances into and out of a cell, and why is this regulation important?

Phospholipids and proteins regulate the movement of substances through the membrane, thereby allowing the membrane to be selectively permeable . This is important since it allows the cell to, for example, ma...
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Answered by Joy H. • Biology tutor
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