In a plant with a 3:1 ratio of dominant to recessive traits, how many offspring

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Question: In a plant with a 3:1 ratio of dominant to recessive traits, how many offspring would you expect to show the dominant trait out of 100?

Options:

Correct Answer: 75

Solution:

In a 3:1 ratio, 75 out of 100 offspring would be expected to show the dominant trait.

In a plant with a 3:1 ratio of dominant to recessive traits, how many offspring would you expect to show the dominant trait out of 100?

In a plant with a 3:1 ratio of dominant to recessive traits, how many offspring would you expect to show the dominant trait out of 100?

Correct Answer: 75

Step 1: Understand the ratio given, which is 3:1. This means for every 4 offspring, 3 will show the dominant trait and 1 will show the recessive trait.
Step 2: Add the parts of the ratio together. 3 (dominant) + 1 (recessive) = 4 total parts.
Step 3: Determine how many groups of 4 are in 100 offspring. Divide 100 by 4. 100 ÷ 4 = 25 groups.
Step 4: Calculate how many offspring show the dominant trait. Since 3 out of 4 show the dominant trait, multiply the number of groups by 3. 25 groups × 3 = 75 offspring.
Step 5: Conclude that out of 100 offspring, you would expect 75 to show the dominant trait.

Genetic Ratios – Understanding the inheritance patterns of dominant and recessive traits, specifically the 3:1 ratio in a monohybrid cross.