Day 2-Monohybrid

In the attached Punnett square, the color green (G) is the dominant color for the Pea plant while yellow (g) is the recessive trait. What is the Phenotypic ratio for this Punnett square?

• 2 green peas : 2 yellow peas

• 3 green peas : 1 yellow peas

• 1 green pea : 3 yellow peas

• 4 green peas : 0 yellow peas

Tags

NGSS.HS-LS3-1

Using the same Punnett square, what will be the Genotypic ratio for this set of Pea plants?

• 1 Homozygous dominant : 2 Heterozygous dominant : 1 Homozygous recessive

• 4 Homozygous dominant : 0 Heterozygous dominant : 0 Homozygous recessive

• 0 Homozygous dominant : 4 Heterozygous dominant : 0 Homozygous recessive

• 0 Homozygous dominant : 0 Heterozygous dominant : 4 Homozygous recessive

Tags

NGSS.HS-LS3-1

In humans’ eye color, Brown (B) is considered to be the dominant color while Blue (b) is considered to be the recessive one. From the Punnett square attached, what will be the Phenotypic ratio?

• 1 Brown eyed : 3 Blue eyed

• 3 Brown eyed : 1 Blue eyed

• 2 Brown eyed : 2 Blue eyed

• 4 Brown eyed : 0 Blue eyed

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

Using the same Punnett square for eye color, what will be its Genotypic ratio?

• 2 Homozygous dominant : 2 Heterozygous dominant : 0 Homozygous recessive

• 2 Homozygous dominant : 0 Heterozygous dominant : 2 Homozygous recessive

• Homozygous dominant : 2 Heterozygous dominant : 2 Homozygous recessive

• 2 Homozygous dominant : 1 Heterozygous dominant : 1 Homozygous recessive

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

NGSS.HS-LS3-3

True or false. The recessive allele can be written on the left when answering a Punnett square as seen in this example : (aA).

• True

• False

What is the definition of Homozygous?

• When one allele is dominant and one is recessive
• When an individual has two sets of the same allele.
• when it is neither dominant or recessive

The genotype is the ______________.

• physical appearance
• Genetic makeup
• Alleles gained from one parent

Tags

NGSS.HS-LS1-1

An allele whose trait only shows up when no dominant allele is present.

• hidden allele
• dominant allele
• recessive allele
• present allele

Which of the following genotypes is heterozygous?

• Bb
• BB
• bb
• B

What is the name of the process in which DNA (genetic information) is exchanged during meiosis?

• crossing under
• crossing over
• melding
• blending