Order
Toll-free 24/7:
+1(669)289-8683
Order

Cattle coat color is determined by codominant alleles R and r. RR results

Author:
January 4th, 2018

1. Cattle coat color is determined by
codominant alleles R and r. RR results in a reddish cow, Rr in a roan coloured
cow, and rr in a white coloured cow. A population of 4000 cattle consisted of
2560 reds, 1280 roans and 160 white cattle. Calculate the gene frequency of the
‘R’ gene and the ‘r’ gene. If you fill in the Table below you’ll have your
answer:

Phenotype

Number of cattle

Number of genes

Gene Frequency

R

r

R

r

Red

2560

0

0

Roan

1280

White

160

0

0

Total

4000

Hence
the overall gene frequency (f(p)) of the red gene =
Hence
the overall gene frequency (f(q)) of the white gene =
You
can also solve this question using the Hardy Weinberg formula
2. PKU
(phenylketonuria) occurs in about 1 out of 12,000 Caucasians. It is rarer in
other ethnic groups. Calculate the frequency of the recessive disease causing
gene. Calculate the frequency of the normal gene. Complete the following table:

Human Phenotypes

Number in a population of 12000

Human Genotypes

Number in a population of 12000

Normal

15624

Normal

Carrier

Showing PKU

1

Showing PKU

1

Hint: Here you must
start the answer by calculating the frequency of the homozygous recessive gene
q and you know that homozygous individuals occur in the population once every
12,000 individuals. Hence q2= 1 in
15625.

3.10% of human males in a sampled population were found to be
red/green colorblind. This is a recessive sex-linked condition. What proportion
of human females are expected to be colorblind in this population. Hint: You
might find it easier to answer this question if you
referred to the table below, whereXb is the
recessive X-linked colour-blind allele and XB is the
dominant normal gene.

Sex

Category

Homozygous
Dominant

Heterozygous
Dominant

Homozygous
Recessive

FEMALES

Genotype

XB XB

XB Xb

Xb Xb

Phenotype

normal

normal

colour-blind

Gamete
Types

XB

XB and Xb

Xb

MALES

Genotype

XB Y

DOES

Xb Y

Phenotype
(Percentage)

normal
(Then you can fill this in)

NOT

colour-blind
(First you must fill this in)

Gamete
Types

XB and Y

EXIST

Xb and Y

Calculate the price
Make an order in advance and get the best price
Pages (550 words)
$0.00
*Price with a welcome 15% discount applied.
Pro tip: If you want to save more money and pay the lowest price, you need to set a more extended deadline.
We know how difficult it is to be a student these days. That's why our prices are one of the most affordable on the market, and there are no hidden fees.

Instead, we offer bonuses, discounts, and free services to make your experience outstanding.
How it works
Receive a 100% original paper that will pass Turnitin from a top essay writing service
step 1
Upload your instructions
Fill out the order form and provide paper details. You can even attach screenshots or add additional instructions later. If something is not clear or missing, the writer will contact you for clarification.
Pro service tips
How to get the most out of your experience with Essay Fountain
One writer throughout the entire course
If you like the writer, you can hire them again. Just copy & paste their ID on the order form ("Preferred Writer's ID" field). This way, your vocabulary will be uniform, and the writer will be aware of your needs.
The same paper from different writers
You can order essay or any other work from two different writers to choose the best one or give another version to a friend. This can be done through the add-on "Same paper from another writer."
Copy of sources used by the writer
Our college essay writers work with ScienceDirect and other databases. They can send you articles or materials used in PDF or through screenshots. Just tick the "Copy of sources" field on the order form.
Testimonials
See why 20k+ students have chosen us as their sole writing assistance provider
Check out the latest reviews and opinions submitted by real customers worldwide and make an informed decision.
English 101
well written excellent job, thank you!!
Customer 452989, December 2nd, 2021
WRTG 393 6360 Advanced Technical Writing (2222)WRTG-393
Patience and truly superb service considering all the information was not uploaded.
Customer 452995, February 4th, 2022
Sociology
Thank you for answering all of the questions provided. The last 3 discussions, I only received a grade of 14 out of 20 points. Let's see how it goes after the grades are posted next week.
Customer 452919, February 9th, 2023
History
Thank you for the revision
Customer 452919, October 31st, 2024
Sociology
Thank you, this is an 8-week course, so I will be needing your assistance.
Customer 452919, January 20th, 2023
Criminal Justice
Very well and a good paper. Well worded and organized. I would like to know where the references come from
Customer 452519, June 13th, 2020
Ethics
I Thank the entire team.
Customer 452919, January 25th, 2022
Business Studies
I had no idea what to do here and you nailed it! Thank you so much!
Customer 453131, November 21st, 2022
Humanities
Best Serivces
Customer 452995, January 24th, 2022
History
Thank you
Customer 452919, October 17th, 2024
Nursing
misunderstanding paper was late
Customer 452695, April 2nd, 2021
Business Studies
This is fantastic! Thank you so much for your hard work!
Customer 453131, November 16th, 2022
11,595
Customer reviews in total
96%
Current satisfaction rate
3 pages
Average paper length
37%
Customers referred by a friend
OUR GIFT TO YOU
15% OFF your first order
Use a coupon FIRST15 and enjoy expert help with any task at the most affordable price.
Claim my 15% OFF Order in Chat
Show more