Genetic Tech -Linked, Chi, DNA Fingerprinting

by Abigale Clair

| 3 Questions1

1

Are these genes linked or unlinked?

Linked

Unlinked

2

1

Which DNA sample has the same allele as the resistant plant?

Sample 1

Sample 2

Sample 3

3

1

A Fair Gamble

Many casinos use card-dealing machines to deal cards at random. Occasionally, the machine is tested to ensure an equal likelihood of dealing for each suit. To conduct the test, 1,500 cards are dealt from the machine, while the number of cards in each suit is counted. Theoretically, 375 cards should be dealt from each suit. As you can see from the results in our table, this is not the case:

Spades Diamonds Clubs Hearts

Observed 402 358 273 467

Expected 375 375 375 375

We can use chi square to determine if the discrepancies are significant. If the discrepancies are significant, then the game would not be fair. Measures would need to be taken to ensure that the game is fair. The FORMULA is below...

Determine if you should accept or reject the null hypothesis, that any discrepencies in the data are due to chance and not any other variables.

Please provide the:

1. CHI SQUARE VALUE:

2. CRITICAL VALUE (you compared to):

3. DEGREES OF FREEDOM:

4. ACCEPT OR REJECT:

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