Unit 8 Lesson 5 Punnett Squares and Pedigrees

Which of the following is a phenotype?

• Aa

• red hair

• heterozygous

• DNA

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

An allele that is masked when a dominant allele is present. The "weaker" gene.

• Dominant Allele

• Recessive Allele

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

An allele whose trait always shows up in the organism when the allele is present. The "stronger" gene.

• Dominant Allele

• Recessive Allele

Tags

NGSS.HS-LS3-1

An organism’s genetic makeup or allele combination.

• Genotype

• Phenotype

• Beanotype

• Notype

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

What is called when a organism has two different alleles for a trait. Tt or Rr

• Heterozygous

• Homozygous

• Domozygous

• Thermozygous

What is called when a organism has two identical alleles for a trait. TT or tt. RR or rr

• Heterozygous

• Homozygous

• Domozygous

• Thermozygous

Tags

NGSS.HS-LS3-1

In a certain species of plant, the color purple (P) is dominant to the color white (p).

According to the Punnett Square, what is the probability of an offspring being purple?

• 25%

• 0%

• 100%

• 50%

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

NGSS.HS-LS3-3

In a certain species of plant, the color purple (P) is dominant to the color white (p).

According to the Punnett Square, what is the probability of an offspring being white?

• 25%

• 0%

• 100%

• 50%

Tags

NGSS.HS-LS3-3

Scientists use capital and small letters to show the _____ of an organism.

• genotype

• genetic disorder

• phenotype

• genome

Tags

NGSS.HS-LS3-1

In a heterozygous genotype, the ___________ allele takes over in the phenotype.

• recessive

• dominant

• lower case letter

• both