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Biology 17 Online
OpenStudy (fantageplayer):

Can someone help me with flvs biology 1 Assignment: 03.06 Mutations

OpenStudy (fantageplayer):

i did it and wasnt satisfied with my grade This is my assignment

OpenStudy (fantageplayer):

this is the instucture feedback after she gave me a 60 you're on the right track, but addressing the following topics with more detail, by using the data from the charts and the lesson, would also strengthen the assignment: 1. Describe how mutations lead to genetic variations. (please refer to page 3 of the lesson) 5. What data would you need to see in order to draw conclusions about the effectiveness of preventive surgeries? (data can't provide genetics of the family) 6. What does the age at diagnosis tell you about the mutation? (incorporate the data to support your response)

OpenStudy (fantageplayer):

can someone please help?

OpenStudy (fantageplayer):

@ScarlettFarra2000

OpenStudy (scarlettfarra2000):

I'm in tutoring right know I'll help you In a little while

OpenStudy (fantageplayer):

thanks so much @ScarlettFarra2000

OpenStudy (scarlettfarra2000):

No problem

OpenStudy (fantageplayer):

tell me when your ready

OpenStudy (fantageplayer):

can you help? @mazmaz1

OpenStudy (mazmaz1):

terribly sorry I so busy now

OpenStudy (fantageplayer):

thanks anyway @mazmaz1

OpenStudy (fantageplayer):

@YoungStudier

OpenStudy (scarlettfarra2000):

Okay let me look to see

OpenStudy (fantageplayer):

ok thanks

OpenStudy (scarlettfarra2000):

Mutations produce random changes in an organism's genetic code. Mutations can occur in non-reproductive cells and then they will not be passed to the next generation, thereforу will not contribute to genetic variation. Only mutations that occur in reproductive cells are passed on to the next generations and contribute to genetic variation in a population. Mutations can either have a positive, negative or neutral (the vast majority) effect on the organism. (many times whether they are harmful or helpful depends on the environment.) When a mutation makes an organism better able to survive that organism is more likely to survive and pass the mutated gene onto the next generation.

OpenStudy (scarlettfarra2000):

You can pick some more facts out of this and see if it'll get you more details

OpenStudy (fantageplayer):

thanks @ScarlettFarra2000

OpenStudy (scarlettfarra2000):

In general, the mutations causing early onset of disease (i.e., in childhood or early adulthood, when they affect the reproductive potential of the individual) tend to be spontaneously occurring ones. They are not the inherited kind, because the affected individual does not live long enough to pass them on. Also, they tend to be dominant to produce phenotypic results because (unless we are talking about mutations on the male X chromosomes, of which they have only one) each cell has a normal or wild type allele for the same gene on the other chromosome, which is usually sufficient to confer a normal phenotype. By contrast, diseases caused by mutations in old age do not affect the reproductive success of the individual - they are as likely to pass the mutant gene on as a normal individual is to pass on the normal gene. So these tend to be recessive. You can also look at: Counter-examples: Tay-Sachs, PKU. What you are overlooking is reassortment: a newborn baby has 1 copy of each autosome from father and mother. For severe alleles, the parents are usually heterozygotes and unaffected. Also it is not true that they are usually dominant, for the same reason. But if, in general, you were to sort through all genetic diseases. And if you weighted for frequency of mutation - for example, if you compared the tens of millions of men and women worldwide with the cancer causing brac 1 and 2 mutations (chromosomals translocation conferring a strong predisposition to breast and other forms of cancer) to the what - possibly two dozen? - kids with the Tay Sachs mutation - then I suspect that the generality above would hold almost universally.

OpenStudy (scarlettfarra2000):

For 6 I can't figure 5 out but I'll will

OpenStudy (fantageplayer):

your a great help tysm

OpenStudy (scarlettfarra2000):

Your welcome I love helping other people

OpenStudy (scarlettfarra2000):

I could only find a website I don't know the answer to this one sorry https://www.medicare.gov/hospitalcompare/Data/Data-Sources.html

OpenStudy (fantageplayer):

its ok

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