Genetics: Patterns of Inheritance Punnett Square Practice

A green pea plant (Gg) is crossed with a yellow pea plant (gg). Describe the genotype of the offspring. (Be sure to remember that the capital letter is dominant).

• 50% heterozygous and 25% homozygous recessive
• 50% heterozygous and 50% homozygous recessive
• 100% homozygous recessive
• 25% heterozygous and 50% homozygous

A tall plant (TT) is crossed with a tall plant (Tt). What is the phenotype of the offspring?

• 50% homozygous dominant; 50% heterozygous; 100% tall
• 100% homozygous dominant; 100% tall
• 25% homozygous dominant; 75% heterozygous; 100% short
• 50% homozygous dominant; 50% heterozygous; 100% short

A tall plant (Tt) is crossed with a short plant (tt). What is the genotype of the offspring?

• 25% heterozygous; 75% homozygous

• 100% homozygous dominant

• 100% heterozygous

• 50% heterozygous; 50% homozygous recessive

What is a GENOTYPE?

• the genetic make-up of an organism

• the physical trait of an organism

• mitosis

• meiosis

Which of the following are GENOTYPES? (select all correct answers)

• black hair

• homozygous dominant

• heterozygous

• blue eyes

• BB

PHENOTYPE is

• the genetic make-up of an organism

• the physical trait of an organism

• nucleic acid

• Aa

Which of the following are PHENOTYPES?

• green skin

• Aa

• homozygous recessive

• purple eyes

• black fur

Which of the following represents alleles for the homozygous recessive genotype?

• Aa

• aa

• AA

Which of the following represents alleles for the homozygous dominant genotype?

• Aa

• aa

• AA

Which of the following represents alleles for the heterozygous genotype?

• Aa

• aa

• AA