What is the probability of 2 pairs of heads on 2 coins?

Answer: 1/2 (1 chance in 2) because the combination of 2 unmatched coins can come about in 2 ways: Result A (coin #1 heads, coin #2 tails) as well as Result B (coin #1 tails, coin #2 heads). Therefore (1/2 x 1/2) + (1/2 x 1/2) = 1/2, or the chance of Result A plus the chance of Result B. AP Biology Paired Coins & Genetics 2011-2012

Why do we use coins to study genetics?

Using paired coins mimics genetics closely. Each coin can serve as the model for a gamete during fertilization, because it’s the ”luck of the draw” or “probability” governing which sperm fertilizes which egg.

How do you simulate genetics in biology?

Simulating genetics can be done using simple coin procedures. This practical introduces students to the idea of statistical probability in genetics and simulates a monohybrid cross. Students will use the head side of the coin to represent a dominant allele for a trait, and the tail to represent the corresponding recessive allele.

What does tossing the coin show about recombination?

Tossing two coins and combining the results (HH, HT, or TT) clearly demonstrates the recombination of alleles during fertilization and the establishment of the next generation genotype. If you toss the coin, what are the chances that it will land on heads? Record your predictions and explain your reasoning.