Applying Probability in Genetics and Coin Flips

Mr. Andersen discusses the application of multiplication and addition in genetics, starting with multiplication as it is easier to understand in this context. He explains how multiplication is used when independent events occur in sequence, using examples like flipping a coin and genetic crosses. Addition is used for mutually exclusive events, demonstrated with examples from dice rolls and card draws. The video emphasizes the importance of understanding these rules for solving complex genetic problems without relying on large Punnett squares.

What is the probability of flipping a coin five times and getting tails each time?

• 1 in 64

• 1 in 128

• 1 in 32

• 1 in 16

If you roll two dice, what is the probability of getting Snake Eyes?

• 1 in 36

• 1 in 6

• 1 in 18

• 1 in 12

What is the probability of drawing a 3 and then a King from a deck of cards, with replacement?

• 1 in 104

• 1 in 52

• 1 in 169

• 1 in 256

In a cross between two heterozygous pea plants, what is the probability of obtaining a homozygous recessive offspring?

• 1 in 4

• 1 in 5

• 1 in 3

• 1 in 2

For a tri-hybrid cross, what is the probability of obtaining an offspring with a specific genotype using multiplication?

• 1 in 16

• 1 in 8

• 1 in 4

• 1 in 32

What is the probability of rolling a 2 or a 5 on a six-sided die?

• 1 in 3

• 1 in 2

• 1 in 4

• 1 in 5

What is the probability of drawing a 5 or a heart from a deck of cards?

• 1 in 26

• 1 in 13

• 1 in 52

• 4 in 13

In a cross between heterozygous pea plants, what is the probability of obtaining a heterozygous offspring?

• 1 in 2

• 1 in 3

• 1 in 4

• 1 in 5

When combining the rules of multiplication and addition, what is the probability of obtaining a specific genetic outcome?

• 1 in 4

• 1 in 16

• 1 in 8

• 1 in 12

What is the probability of obtaining either of two specific genetic outcomes in a cross?

• 1 in 4

• 1 in 8

• 1 in 12

• 1 in 16