Question

I need help with this biology assignment about mutations.

Answer 1

Could you screenshot the assignment please.

Answer 2

I will be back in.... umm, 40 minutes with the steps and the help you need. This will take a long time. I might not be able to do it, but I'll try.

Answer 3

Ok, thanks.

Answer 4

● Describe how mutations lead to genetic variations.

You can think about it. If one individual in a population gets a mutation, and mates and that particular gene spreads, there would be a new gene in the population. You can elaborate on this.

● Which appears to be more dangerous: the BRC1 or BRC2 mutation?

Analyze the data and determine which gene has a more fatal outcome (i.e., more deaths, more procedures required, etc.)

● Analyze a woman’s risk of dying of cancer if she carries a mutated BRC1 gene.

Do deaths/diagnosis (percent died) and discuss which one is greater. You could also look at the graph and analyze at what age range(s) are the risks greater.

● How do heredity and inheritance relate to the data presented in these charts?

"All of the women in the study had a family history of breast cancer." Should offer a lot of insight as to how you should frame your response.

● What data would you need to see in order to draw conclusions about the effectiveness of preventive surgeries?

After approval from IRB, you could do a simple random sample or a cluster study of diagnosed individuals and have some undergo the surgery and some who don't. Then after obtaining results after the surgery, perform a test to evaluate whether the surgery is more effective thannot.

● What does the age at diagnosis tell you about the mutation?

Look at the graph.

● Explain how breast-cancer genes are still present in the population, despite cancer-related surgeries and deaths.

Breast-cancer can be passed along generations, meaning that it could and is being spread in populations. You could elaborate.