Which of the following can cause genetic variation?

Which of the following best describes a dihybrid cross?

In a monohybrid cross between two heterozygous individuals (Aa × Aa), what is the expected phenotypic ratio?

Which of the following best describes mitosis?

In a dihybrid cross between two heterozygous individuals, what is the expected phenotypic ratio?

If a homozygous dominant individual (AA) is crossed with a homozygous recessive individual (aa), what will be the genotype of all offspring?

Which of the following best describes a heterozygous genotype?

Which of the following best describes a recessive allele?

During which phase of mitosis does the nuclear membrane reform?

4 25.jpg It is crucial that the immune system can tell the difference.