Warm Up: Monohybrid

Warm Up: Monohybrids

2/8 and 2/9

Multiple Choice

What are the possible genotypic ratios for this cross?

• TT 1: Tt: 2: tt: 1

• Tt: 2: TT: 2

• TT: 3 tt: 1

• Tt: 4

Multiple Choice

Georgette wants to breed her pet phoenixes, but she isn't sure if the babies will burst into blue flames or red flames. Her documents show that her female phoenix is homozygous dominant for red flames, while her male phoenix is homozygous recessive for blue flames. What color flames will the babies have?

• Red

• Blue

• Purple

• 50% Red, 50% Blue

Multiple Choice

What is the probability of a purple-horned unicorn if a heterozygous pink-horned unicorn is crossed with a heterozygous pink-horned unicorn?

• 0%

• 25%

• 50%

• 75%

• 100%

Multiple Choice

B - black, b - brown.  Two black mice mate and have some black and some brown mice.  What is the genotype of the parents?

• BB x Bb
• BB x bb
• Bb x Bb
• Bb x bb

Multiple Choice

Round seeds (R) are dominant over wrinkled seeds (r). What percentage of the offspring will be round from the following cross?

Rr X Rr

• 100%

• 75%

• 50%

• 25%

Multiple Choice

Aa, DD, bB, yy are all examples of

• genotypes

• phenotypes

Multiple Choice

Which of the following is a heterozygous genotype?

• Gg

• UU

• pp

Multiple Choice

A heterozygous long-tusked elephant is crossed with a homozygous recessive short-tusked elephant. What is the probability of the offspring having short tusks?

• 0%

• 25%

• 50%

• 75%

Multiple Choice

Which of the following is a heterozygous genotype?

• Gg

• UU

• pp