b). In the same population as above, what is the frequency of people with type A blood? Show your work.

- During exercise the body cools itself by sweating. sweating in response to an elevated body temperat... 1 year ago
- Surveys show that people who use calorie information to decide which foods to eat consume on average... 1 year ago
- A(n) _____ competitor provides a product or service that a consumer might buy instead of yours even... 1 year ago
- Tell us about a mistake you've made in your past and what you learned from that mistake. fire fighte... 1 year ago
- You work in an important and visible position in government. your decision is to choose between two... 1 year ago

- What unique accomplishment did ruben Dario achieve at the age of 18? A. he graduated from university... 303 Views 1 year ago
- What does Mark Twain satirize in this excerpt from "The £1,000,000 Bank-Note"? It was a lovely di... 176 Views 1 year ago
- It is a good idea to learn about a food supplier's warehouse practices. The best way to gather the i... 103 Views 2 years ago
- The opening balance of one of the 31-day billing cycles for Suzy's credit card was $7400, but after... 75 Views 2 years ago
- A plot of land in the shape of a vertical ellipse has a pole at each focus. The foci are 8 feet from... 65 Views 1 year ago

## Answers

## tasha0408

a) The answer is 0.1.

The frequency of IA allele is 0.2:

IA = 0.2

The frequency of O individuals is 0.49:

ii = 0.49

Since there is only one possible genotype for O individuals - ii - the frequency of i is square root of the frequency of O individuals:

i = √ii

⇒ i = √0.49

⇒ i = 0.7

Now, we have the frequencies of two alleles (IA and i). To calculate the frequency of IB allele, we will use the formula:

IA + i + IB = 1

⇒ IB = 1 - IA - i

⇒ IB = 1 - 0.2 - 0.7

⇒ IB = 0.1

So, the frequency of IB allele is 0.1.

b) The answer is 0.32.

There are two possible genotypes for A individuals - [latex] I^{A} I^{A} [/latex] and [latex] I^{A}i [/latex].

Frequency of [latex] I^{A} I^{A} [/latex] is:

[latex] I^{A} I^{A} [/latex] = AI² = 0.2² = 0.04

Frequency of [latex] I^{A}i [/latex] is:

[latex] I^{A}i [/latex] = 2 x AI x i = 2 x 0.2 x 0.7 = 0.28

Frequency of people with type A blood is the sum of these two frequencies:

A = 0.04 + 0.28 = 0.32

The number of people with type A blood would be:

0.32 x 1000 people = 320 people