Genetic Crosses: Exploring Punnett Squares

What is the correct term for genetic crosses that involve 2 traits?

a) Dihybrid crosses

b) Monohybrid crosses

c) Trihybrid crosses

d) Recessive crosses

Answer:

The correct answer is d) Recessive crosses.

Genetic crosses that involve 2 traits utilize Punnett squares to determine allele combinations and resulting phenotypes. In this scenario, the focus is on the expression of recessive traits.

When crossing individuals with 2 traits, such as floppy-eared bunnies governed by a recessive allele, the Punnett square helps predict outcomes. For instance, if a homozygous dominant bunny with straight ears (DD) is crossed with a homozygous recessive bunny with floppy ears (dd), all offspring (Dd) will exhibit straight ears due to the dominance of the allele.

Understanding genetic crosses and utilizing tools like Punnett squares are crucial in predicting traits in offspring and studying genetic inheritance patterns.