Cell Biology Answers

During cell division, each new daughter cell must have the same copy of genetic information found in the DNA. Which of the following refers to the process of copying a DNA molecule?

How do structural and regulatory genes differ in their arrangement in the genome in prokaryotes and eukaryotes?

You would describe the cells from which insulin is secreted and state the overall role of insulin in the body. In signalling pathways, each signal molecule has a receptor that it binds to, so you would indicate what the receptor for insulin is called and what immediate outcome the binding of insulin has to that receptor i.e. in the case of insulin, which regulates glucose uptake in the body, does the receptor directly interact with glucose or is it just part of a much larger signalling cascade.

Explain what you consider to be the positive and negative aspects of cloning both scientifically and morally, giving at least three ‘for’ and three ‘against’ points – Discuss whether you think it is a good use of science and will benefit mankind or whether you believe it is unethical and should no longer be pursued? You can expand this discussion outside of therapeutic cloning if you wish and consider the idea that one day it may also be possible to clone whole human beings.

Discuss/summarize the hierarchy of the molecular organization of the cell according to increasing molecular complexity. 

how many cells are in the body

What is the main purpose of all types of reproduction? *

What is fertilization

Why is it important for NADH and FADH2 to donate their high energy electrons to NADH-Q reductase and Quinone, respectively?  Would it not be easier to donate the electrons directly to oxygen since that’s where they are going to end up anyway? 

what is the storage organ for an egg yolk