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Biology-Related Homework Help General Biology Topic started by: ILoveBIO30 on Aug 5, 2015



Title: 14 out of 2400 babies that were born at a maternity hospital died shortly after birth from colonic o
Post by: ILoveBIO30 on Aug 5, 2015
14 out of 2400 babies that were born at a maternity hospital died shortly after birth from colonic obstruction due to a recessive allele. Determine the frequency of the lethal allele in the population, expressed as a percent.

(Round your answer to two significant figures)

Answer: ________     Units:________


4 out of 2400 babies that were born at a maternity hospital died shortly after birth from colonic obstruction due to a recessive allele. What percent of the population would you expect to be carriers of the lethal allele?

(Round your answer to two significant figures)

Answer:_________ Units:__________





* Help would be greatly appreciated :)


Title: Re: 14 out of 2400 babies that were born at a maternity hospital died shortly after birth from colon
Post by: bio_man on Aug 7, 2015
Use this as a sample to answer your question. If you need more help, post back!

14 out of 2400 babies that were born at a maternity hospital died shortly after birth from colonic obstruction due to a recessive allele. Determine the frequency of the lethal allele in the population, expressed as a percent.

(Round your answer to two significant figures)

Answer: ________     Units:________

p^2 + 2pq + q^2 = 1 and p + q = 1

p = frequency of the dominant allele in the population
q = frequency of the recessive allele in the population

p^2 = percentage of homozygous dominant individuals
q^2 = percentage of homozygous recessive individuals
2pq = percentage of heterozygous individuals

We are given 6/2400 as the percentage of homozygous recessive individuals:

q^2 = 6/2400 = 0.0025

Using algebra, we can find q, the frequency of the recessive allele, which is lethal if homozygous.

q = sqrt(0.0025) = 0.05 = 5%

So 5 percent of the population is a heterozygous carrier of the lethal allele.


Title: Re: 14 out of 2400 babies that were born at a maternity hospital died shortly after birth from colon
Post by: ILoveBIO30 on Sep 28, 2015
I don't understand where you got number 6 from?
Cause they give us numbers 14 and 2400....

and how would you go about this question?

2. 4 out of 2400 babies that were born at a maternity hospital died shortly after birth from colonic obstruction due to a recessive allele. What percent of the population would you expect to be carriers of the lethal allele?


Title: Re: 14 out of 2400 babies that were born at a maternity hospital died shortly after birth from colon
Post by: bio_man on Sep 28, 2015
I don't understand where you got number 6 from?

It was assumed to be 6 out 2400. Sorry...


Title: Re: 14 out of 2400 babies that were born at a maternity hospital died shortly after birth from colon
Post by: ILoveBIO30 on Oct 2, 2015
Thats alright!

Do you know how to solve the second question? 4 out of 2400 babies....


Title: Re: 14 out of 2400 babies that were born at a maternity hospital died shortly after birth from colon
Post by: bio_man on Oct 4, 2015
4 out of 2400 babies that were born at a maternity hospital died shortly after birth from colonic obstruction due to a recessive allele. What percent of the population would you expect to be carriers of the lethal allele?

(Round your answer to two significant figures)

Answer:_________ Units:__________


Title: Re: 14 out of 2400 babies that were born at a maternity hospital died shortly after birth from colon
Post by: ILoveBIO30 on Oct 7, 2015
Thanks! I really appreciate it :)


Title: Re: 14 out of 2400 babies that were born at a maternity hospital died shortly after birth from colon
Post by: WintersEnd on Oct 10, 2015
Thanks!


Title: Re: 14 out of 2400 babies that were born at a maternity hospital died shortly after birth from ...
Post by: g.estxcio on May 27, 2019
thank you


Title: Re: 14 out of 2400 babies that were born at a maternity hospital died shortly after birth from ...
Post by: Connor Brady on Jan 16, 2022
thank you so much!